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Class VII >> Science >> Soil >> A1

Q1	Generally, hilly areas have a __________ layer of soil.
A	Coarse
B	Thick
C	Black
D	Thin

Q2	Soil contains __________.
A	Water and Plants
B	Air and Water
C	Water, Air and Plants
D	Water, Air, Plants, Minerals, Organic Matter and Rock Particles

Q3	__________ soil dries out quickly after a rainfall?
A	Clayey
B	Sandy
C	Loamy
D	Black soil

Q4	__________ types of soil are found on the basis of size of the particles.
A	One
B	Three
C	Two
D	Four

Q5	Which kind of pesticide helps to decrease soil pollution?
A	Chemical Pesticides
B	Sulphates and Nitrates
C	Chemical Fertilisers
D	Organic Pesticides

Q6	Vegetables and other agricultural wastes are __________ matter.
A	Bio-degradable
B	Non-biodegradable
C	Acidic
D	High on pH level

Q7	The process by which rocks break down gradually to form soil is called __________.
A	Evolution
B	Weathering
C	Erosion
D	Percolation

Q8	Reduction or prevention of soil erosion is called as __________.
A	Soil Formation
B	Soil Pollution
C	Soil Absorption
D	Soil Conservation

Q9	Major causes of soil pollution is/are __________.
A	Excretory Products of Living Organisms
B	Untreated Sewage Water and Industry Effluents
C	Excessive Use of Insecticides and Fertilizers
D	All of the Above

Q10	Soil erosion is caused due to __________.
A	Afforestation
B	Terrace Farming
C	Overgrazing by Animals
D	None of the Above

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