Which among the following is soil conservation method ?
A) Contour trenches
B) Growing grass plants
C) Crop-rotation system
D) All the above
1 Answers
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If the pH level of soil is below 7 then the soil is
Correct option is A) acidic
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This method helps in the percolation of water into the soil.
B) contour ploughing
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Identify the correct matching from the following. List – A 1) Soil below pH7 2) Soil above pH7
C) 1 – b, 2 – c, 3 – a
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Match the following: Group – A 1) Soil below pH 7 2) Soil above pH 7
Group – A Group – B 1) Soil below pH 7 H) Acidic 2) Soil above pH 7 E) Alkaline 3) Mineralization G) Soil microbes 4) Mycorrhiza A) Symbiosis 5) Biodegradable waste F) Dung 6) Non-biodegradable waste D) Radioactive waste 7) DDT C) Insecticide
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state any five types of soil in India and explain the characteristics and distribution of soil?
Soil Type Characteristics Distribution Forest and mountain soils Differ from region to region depending on climate. Formation - due to mechanical weathering caused by snow, rain, temperature variation Chemical properties - are deficient in potash, phosphorus and lime. Nature...
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Ramya gave her old books to her sister. Which type of conservation method it is ?
Answer is (D) Reuse
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In United States nearly one – third of the iron is produced from old automobiles. What is the conservation method they are following ?
Answer is (C) Recycle
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This conservation group proposed World Conservation Strategy in 1980.
Answer is (B) IUCN
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The soil found in Northern Great Plains and coastal plains Red soil Alluvial soil Black soil Laterite soil
Alluvial soil.
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In advance countries like USA and UK the ………… method of measuring NI is popular. (a) Output Method / Product Method
Correct option: (2) only b
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