{"id":16648,"date":"2021-08-13T12:39:49","date_gmt":"2021-08-13T07:09:49","guid":{"rendered":"https:\/\/apboardsolutions.guru\/?p=16648"},"modified":"2021-09-16T08:57:23","modified_gmt":"2021-09-16T03:27:23","slug":"ap-9th-class-biology-bits-chapter-10","status":"publish","type":"post","link":"https:\/\/apboardsolutions.guru\/ap-9th-class-biology-bits-chapter-10\/","title":{"rendered":"AP 9th Class Biology Bits Chapter 10 Soil Pollution with Answers"},"content":{"rendered":"

Practice the AP 9th Class Biology Bits with Answers<\/a> Chapter 10 Soil Pollution on a regular basis so that you can attempt exams with utmost confidence.<\/p>\n

AP State Syllabus 9th Class Biology Bits 10th Lesson Soil Pollution with Answers<\/h2>\n

I. Choose the correct answers :<\/span><\/p>\n

Question 1.
\nSoil is made up of
\nA) minerals
\nB) decomposed organic matter
\nC) air and water
\nD) all
\nAnswer:
\nD) all<\/p>\n

Question 2.
\nThe time required to create one inch of top soil
\nA) 100 – 1000 years
\nB) 100 – 10,000 years
\nC) 100 – 5000 years
\nD) 100 – 15,000 years
\nAnswer:
\nB) 100 – 10,000 years<\/p>\n

\"AP<\/p>\n

Question 3.
\nThe layer of the soil which is the foundation for the life on the earth
\nA) the middle layer
\nB) bottom layer
\nC) top layer
\nD) all the above
\nAnswer:
\nC) top layer<\/p>\n

Question 4.
\nSoil consists of nutrients required for plant growth are
\nA) nitrogen
\nB) phosphorus
\nC) potassium
\nD) all
\nAnswer:
\nD) all<\/p>\n

Question 5.
\nIf the pH level of soil is below 7 then the soil is
\nA) acidic
\nB) alkaline
\nC) saline soil
\nD) organic soil
\nAnswer:
\nA) acidic<\/p>\n

Question 6.
\nThe pH value of Alkaline soil is
\nA) above 7
\nB) below 7
\nC) above 8
\nD) below 8
\nAnswer:
\nA) above 7<\/p>\n

Question 7.
\nMajor microbial groups in soil are
\nA) bacteria, fungi
\nB) bacteria, fungi, algae
\nC) bacteria, fungi, algae and protozoa
\nD) bacteria, fungi, protozoa
\nAnswer:
\nD) bacteria, fungi, protozoa<\/p>\n

Question 8.
\nThe process of converting organic forms of elements to their inorganic forms by soil microorganisms is known as
\nA) biogeochemical cycles
\nB) mineralization
\nC) pyrolysis
\nD) incineration
\nAnswer:
\nB) mineralization<\/p>\n

Question 9.
\nA major part of the soil microbial biomass is composed of
\nA) algae
\nB) fungi
\nC) bacteria
\nD) protozoa
\nAnswer:
\nB) fungi<\/p>\n

\"AP<\/p>\n

Question 10.
\nWaste substances that can be degraded by microbes into harmless and non-toxic substances are
\nA) degradable waste
\nB) non-biodegradable waste
\nC) biodegradable waste
\nD) non-degradable waste
\nAnswer:
\nC) biodegradable waste<\/p>\n

Question 11.
\nExcessive potassium content in soil decreases vitamin C and carotene content in
\nA) vegetables
\nB) fruits
\nC) grains
\nD) vegetables and fruits
\nAnswer:
\nD) vegetables and fruits<\/p>\n

Question 12.
\nThe first widespread insecticide used is
\nA) DDT
\nB) BHC
\nC) Malathion
\nD) Nuvacron
\nAnswer:
\nA) DDT<\/p>\n

Question 13.
\nThe process of increasing concentration of chemicals through the food chain is known as
\nA) incineration
\nB) pyrolysis
\nC) biomagnification
\nD) bioremediation
\nAnswer:
\nC) biomagnification<\/p>\n

Question 14.
\nIncrease in solid waste is due to
\nA) increase in population
\nB) urbanization
\nC) both A and B
\nD) modernization
\nAnswer:
\nC) both A and B<\/p>\n

Question 15.
\nHazardous solid waste includes
\nA) household waste
\nB) industrial waste
\nC) sanitation residue
\nD) construction waste
\nAnswer:
\nB) industrial waste<\/p>\n

Question 16.
\nAn excellent binding material that keeps the soil intact and healthy
\nA) forests
\nB) grasslands
\nC) forests, grasslands
\nD) none
\nAnswer:
\nC) forests, grasslands<\/p>\n

\"AP<\/p>\n

Question 17.
\nThe amount of solid waste produced in Indian cities per day is
\nA) 50,000 – 80,000 metric tons
\nB) 5,000 – 8,000 metric tons
\nC) 500 – 800 metric tons
\nD) 600 – 800 metric tons
\nAnswer:
\nA) 50,000 – 80,000 metric tons<\/p>\n

Question 18.
\nMicrobial decomposition of organic wastes generate large amounts of
\nA) ethane
\nB) propane
\nC) methane
\nD) acetylene
\nAnswer:
\nC) methane<\/p>\n

Question 19.
\nWhich metal has unpleasant effect on human health ?
\nA) gold
\nB) silver
\nC) lead
\nD) copper
\nAnswer:
\nC) lead<\/p>\n

Question 20.
\nSoil pollution can be prevented by
\nA) limit construction in sensitive area
\nB) adopting four R\u2019s : Reduce, Reuse, Recycle and Recover
\nC) applying biofertilizers and manures
\nD) all the above
\nAnswer:
\nD) all the above<\/p>\n

Question 21.
\nThe average per capita solid wastes produced per day is
\nA) 264 gms
\nB) 364 gms
\nC) 634 gms
\nD) 346 gms
\nAnswer:
\nB) 364 gms<\/p>\n

Question 22.
\nThis is the simple and most widely used technique of solid waste management.
\nA) burying the waste
\nB) burning the waste
\nC) incineration of waste
\nD) pyrolysis
\nAnswer:
\nA) burying the waste<\/p>\n

Question 23.
\nThe solid waste management process which is expensive and cause air pollution
\nA) burying the waste
\nB) pyrolysis
\nC) incineration of waste
\nD) bioremediation
\nAnswer:
\nC) incineration of waste<\/p>\n

\"AP<\/p>\n

Question 24.
\nUsing a biological remedy to reduce or clean up contamination is known as
\nA) pyrolysis
\nB) incineration
\nC) bioaccumulation
\nD) bioremediation
\nAnswer:
\nD) bioremediation<\/p>\n

Question 25.
\nVolatile elements which can be released directly from plants to atmosphere are
\nA) lead, mercury
\nB) mercury, selenium
\nC) selenium, lead
\nD) antimony, mercury
\nAnswer:
\nB) mercury, selenium<\/p>\n

Question 26.
\nLand pollution occurs massively during
\nA) earthquakes, floods
\nB) land slides, hurricanes
\nC) earthquakes, floods, land slides
\nD) earthquakes, floods, land slides, hurricanes
\nAnswer:
\nD) earthquakes, floods, land slides, hurricanes<\/p>\n

Question 27.
\nThis method helps in the percolation of water into the soil.
\nA) no – till farming
\nB) contour ploughing
\nC) crop rotation
\nD) planting trees
\nAnswer:
\nB) contour ploughing<\/p>\n

Question 28.
\nThe uptake of nutrients in plants is also governed to a certain extent by
\nA) nature of the soil
\nB) soil pH
\nC) soil organisms
\nD) crop rotation
\nAnswer:
\nB) soil pH<\/p>\n

Question 29.
\nNumber of earthworms present in one acre of land where the top soil is eight inches thick
\nA) 5000
\nB) 50000
\nC) 15000
\nD) 17000
\nAnswer:
\nB) 50000<\/p>\n

Question 30.
\nStep Farming is common in ………………..
\nA) Plains
\nB) Platues
\nC) Hills
\nD) Low lands
\nAnswer:
\nC) Hills<\/p>\n

\"AP<\/p>\n

Question 31.
\nThe microorganisms that help in the formation of soil …………………
\nA) Moss
\nB) Bacteria
\nC) Lichen
\nD) A and C
\nAnswer:
\nD) A and C<\/p>\n

Question 32.
\nBurning of fossil fuel adds ……………………..
\nA) H2<\/sub>, O2<\/sub>, N2<\/sub> in air
\nB) CO2<\/sub>, NO2<\/sub>, SO2<\/sub> gases in air
\nC) SO2<\/sub>, O2<\/sub>
\nD) SO3<\/sub>, SO2<\/sub>
\nAnswer:
\nB) CO2<\/sub>, NO2<\/sub>, SO2<\/sub> gases in air<\/p>\n

Question 33.
\nSoil is the component of ………………
\nA) Atmosphere
\nB) Hydrosphere
\nC) Lithosphere
\nD) Biosphere
\nAnswer:
\nC) Lithosphere<\/p>\n

Question 34.
\nSoil that is best suited for plant growth is ………………
\nA) Clayey
\nB) Loamy
\nC) Sandy
\nD) Gravel
\nAnswer:
\nB) Loamy<\/p>\n

Question 35.
\nBiological weathering is caused by
\nA) Lichens
\nB) Mosses
\nC) Roots of plants
\nD) All the above
\nAnswer:
\nD) All the above<\/p>\n

Question 36.
\nToxic chemicals released by paper industry are
\nA) Cadmium
\nB) Mercury
\nC) Lead
\nD) Nickel
\nAnswer:
\nB) Mercury<\/p>\n

Question 37.
\nMajor sources of formation of soil is
\nA) Rocks
\nB) Himalayas
\nC) Riverbeds
\nD) Volcanoes
\nAnswer:
\nA) Rocks<\/p>\n

\"AP<\/p>\n

Question 38.
\nSun causes weathering of rocks through
\nA) Physical phenomena
\nB) Biological changes
\nC) Chemical changes
\nD) Mechanical force
\nAnswer:
\nB) Biological changes<\/p>\n

Question 39.
\nThese are considered as wind breaks
\nA) Rows of trees and shrubs
\nB) Growing grasses alternating with crops
\nC) Compound walls
\nD) Raising edges of fields
\nAnswer:
\nA) Rows of trees and shrubs<\/p>\n

Question 40.
\nThis gas is formed on burning of wood
\nA)NO2<\/sub>
\nB)O2<\/sub>
\nC) H2<\/sub>
\nD) CO2<\/sub>
\nAnswer:
\nD) CO2<\/sub><\/p>\n

Question 41.
\nOzone layer is present in this layer
\nA) Troposphere
\nB) Stratosphere
\nC) Ionosphere
\nD) None
\nAnswer:
\nB) Stratosphere<\/p>\n

Question 42.
\n“Friend of the farmer” ……………….
\nA) Frogs
\nB) Earthworms
\nC) Snails
\nD) Toads
\nAnswer:
\nB) Earthworms<\/p>\n

Question 43.
\nBiological remedy to clean up contamination is
\nA) Bio-remediation
\nB) Phyto remediation
\nC) Bio-magnification
\nD) Both A and B
\nAnswer:
\nD) Both A and B<\/p>\n

Question 44.
\nThe hazardous elements that are released directly from plants to atmosphere
\nA) Selenium
\nB) Mercury
\nC) Lead
\nD) Both A and B
\nAnswer:
\nD) Both A and B<\/p>\n

\"AP<\/p>\n

Question 45.
\nIdentify the mismatched pairs from the following.
\n1) Reuse – Iron
\n2) Recycling – Paper
\n3) Contour ploughing – Soil Erosion
\nA) 1, 2
\nB) 2, 3
\nC) 1, 3
\nD) 1 only
\nA) 1, 2<\/p>\n

Question 46.
\nAnaerobic\/aerobic decomposition of biodegradable municipal and domestic wastes give
\nA) Natural gas
\nB) CNG
\nC) LPG
\nD) Gober gas
\nAnswer:
\nD) Gober gas<\/p>\n

Question 47.
\nThese are considered as valuable sinks for CO2<\/sub> ………………….
\nA) Fields
\nB) Rivers
\nC) Lakes
\nD) Forests
\nAnswer:
\nD) Forests<\/p>\n

Question 48.
\nExample for hazardous solid waste
\nA) Industrial and hospital waste
\nB) Debris
\nC) Chemical wastes
\nD) Discarded medicines
\nAnswer:
\nA) Industrial and hospital waste<\/p>\n

Question 49.
\nThe best example for bio-magnification is …………………..
\nA) D.D.T
\nB) B.H.C
\nC) Dieldrin
\nD) All the above
\nAnswer:
\nD) All the above<\/p>\n

Question 50.
\nIdentify the correct matching from the following.
\nList – A
\n1) Soil below pH7
\n2) Soil above pH7
\n3) Mycorrhiza<\/p>\n

List – B
\na) Symbiosis
\nb) Acidic
\nc) Basic
\nA) 1 – a, 2 – b, 3 – c
\nB) 1 – b, 2 – a, 3 – c
\nC) 1 – b, 2 – c, 3 – a
\nD) 1 – c, 2 – c, 3 – b
\nAnswer:
\nC) 1 – b, 2 – c, 3 – a<\/p>\n

Question 51.
\nIdentify the mismatched pair from the following.
\n1) Biodegradable waste – Dung
\n2) Non-Biodegradable waste – Radioactive waste
\n3) D.D.T – Weedicide
\nA) 1, 2
\nB) 2, 3
\nC) 1, 3
\nD) 3 only
\nAnswer:
\nD) 3 only<\/p>\n

\"AP<\/p>\n

Question 52.
\nIdentify the correct matching from the following.
\n1) Biomagnification – Food chain
\n2) Solid wastes – Deforestation
\n3) Soil erosion – Burying the waste
\nA) 1, 3
\nB) 2 only
\nC) 1, 2
\nD) 1 only
\nAnswer:
\nD) 1 only<\/p>\n

Question 53.
\nChoose the correct matching from the following.
\nList – A
\n1) Incinaration
\n2) Bioremediation
\n3) Phytoremediation<\/p>\n

List – B
\na) Plants
\nb) Clean up contamination
\nc) Expensive method
\nA) 1 – a, 2 – b, 3 – c
\nB) 1 – c, 2 – b, 3 – a
\nC) 1 – a, 2 – c,3 – b
\nD) 1 – c, 2 – a,3 – b
\nAnswer:
\nB) 1 – c, 2 – b, 3 – a<\/p>\n

Question 54.
\nThe range of pH values of a good soil lies from ………………..
\nA) 5.5 – 6.5
\nB) 6 – 7
\nC) 5.5 to 7.5
\nD) 5.5 – 8.5
\nAnswer:
\nC) 5.5 to 7.5<\/p>\n

Question 55.
\nD.D.T was not soluble in water but in …………….
\nA) Phenol
\nB) Fat
\nC) Carbohydrate
\nD) Benzene
\nAnswer:
\nB) Fat<\/p>\n

Question 56.
\nExpanded form of D.D.T is …………….
\nA) Di Dehydro Tetracycline
\nB) Diphenol Dihydro Tetrane
\nC) Dichloro Diphenyle Trichloro Ethane
\nD) Dichloro Diphenol Tri Ethane
\nAnswer:
\nC) Dichloro Diphenyle Trichloro Ethane<\/p>\n

Question 57.
\nThe process of combustion in absence of oxygen is ……………………..
\nA) Incineration
\nB) Pyrolysis
\nC) Burning
\nD) Oxidation
\nAnswer:
\nB) Pyrolysis<\/p>\n

Question 58.
\nCalcium deficiency in soils is due to
\nA) High pH value
\nB) Low pH value
\nC) High Mg value
\nD) High humus value
\nAnswer:
\nB) Low pH value<\/p>\n

\"AP<\/p>\n

Question 59.
\nMicrobial activity and nutrient absorption in soils is due to
\nA) Low pH
\nB) High pH
\nC) High Humus
\nD) None
\nAnswer:
\nB) High pH<\/p>\n

II. Match the following:<\/span><\/p>\n

i)<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Group – A<\/td>\nGroup – B<\/td>\n<\/tr>\n
1) Soil below pH 7<\/td>\nA) Symbiosis<\/td>\n<\/tr>\n
2) Soil above pH 7<\/td>\nB) Weedicide<\/td>\n<\/tr>\n
3) Mineralization<\/td>\nC) Insecticide<\/td>\n<\/tr>\n
4) Mycorrhiza<\/td>\nD) Radioactive waste<\/td>\n<\/tr>\n
5) Biodegradable waste<\/td>\nE) Alkaline<\/td>\n<\/tr>\n
6) Non-biodegradable waste<\/td>\nF) Dung<\/td>\n<\/tr>\n
7) DDT<\/td>\nG) Soil microbes<\/td>\n<\/tr>\n
<\/td>\nH) Acidic<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Answer:
\n1) Soil below pH 7 – H) Acidic
\n2) Soil above pH 7 – E) Alkaline
\n3) Mineralization – G) Soil microbes
\n4) Mycorrhiza – A) Symbiosis
\n5) Biodegradable waste – F) Dung
\n6) Non-biodegradable waste – D) Radioactive waste
\n7) DDT – C) Insecticide<\/p>\n

ii)<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Group – A<\/td>\nGroup – B<\/td>\n<\/tr>\n
1) Biomagnification<\/td>\nA) Methane<\/td>\n<\/tr>\n
2) Soil erosion<\/td>\nB) Expensive method<\/td>\n<\/tr>\n
3) Solid wastes<\/td>\nC) Clean up contamination<\/td>\n<\/tr>\n
4) Incineration<\/td>\nD) Food chain<\/td>\n<\/tr>\n
5) Cow dung<\/td>\nE) Burying the waste<\/td>\n<\/tr>\n
6) Bioremediation<\/td>\nF) Deforestation<\/td>\n<\/tr>\n
7) Phytoremediation<\/td>\nG) Animals<\/td>\n<\/tr>\n
<\/td>\nH) Plants<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Answer:
\n1) Biomagnification – D) Food chain
\n2) Soil erosion – F) Deforestation
\n3) Solid wastes – E) Burying the waste
\n4) Incineration – B) Expensive method
\n5) Cow dung – A) Methane
\n6) Bioremediation – C) Clean up contamination
\n7) Phytoremediation – H) Plants<\/p>\n

Question 60.
\nWhich of the following does NOT cause soil pollution ?
\nA) Vegetable peels
\nB) Acid rain
\nC) Pesticides
\nD) Polythene bags
\nAnswer:
\nA) Vegetable peels<\/p>\n

\"AP<\/p>\n

Question 61.
\nOne of the following statements is practicable keeping in view of waste management
\nA) Solid waste management involves collection, transfer and transport to suitable places.
\nB) We cannot treat industrial wastes.
\nC) Acidic and alkaline wastes should not be neutralised before disposal.
\nD) We should follow the Pyrolysis process as it requires more oxygen.
\nAnswer:
\nA) Solid waste management involves collection, transfer and transport to suitable places.<\/p>\n

Question 62.
\nBOD means
\nA) Basic Oxygen Demand
\nB) Biological Oxygen Demand
\nC) Biological Organic Demand
\nD) Biological Organic Density
\nAnswer:
\nB) Biological Oxygen Demand<\/p>\n","protected":false},"excerpt":{"rendered":"

Practice the AP 9th Class Biology Bits with Answers Chapter 10 Soil Pollution on a regular basis so that you can attempt exams with utmost confidence. AP State Syllabus 9th Class Biology Bits 10th Lesson Soil Pollution with Answers I. Choose the correct answers : Question 1. Soil is made up of A) minerals B) …<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[12],"tags":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/16648"}],"collection":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/comments?post=16648"}],"version-history":[{"count":0,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/posts\/16648\/revisions"}],"wp:attachment":[{"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/media?parent=16648"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/categories?post=16648"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/apboardsolutions.guru\/wp-json\/wp\/v2\/tags?post=16648"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}