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For the following questions answer them individually
Observe the following lists and match correct combinations.
Correct answer of A,B,C,D and E is
III I V IV II
III V I IV II
III V IV I II
III II V I IV
Assertion (A): 'SRI' in SRI vari is 'System of Rice Intensification'.Reason (R): Any rice variety can be cultivated as semi arid using less amount of seed and less water.
Both (A) and (R) are correct; R is correct explanation for (A)
Both (A) and (R) are correct; R is not correct explanation for (A)
(A) is correct and (R) is not correct
(A) is not correct and (R) is correct
Identify the incorrect matches from the following.
I & III
I & II
II & III
Assertion (A): Conversion of solid nitrates $$(NO3^-)$$ into gaseous Nitrogen($$N_2$$) by bacteria is called denitrification.Reason (R): Denitrifying bacteria grow in wet soils.
(A) is correct and (R) is wrong
(A) is wrong and (R) is correct
Assertion (A): Fewer the steps in the food chain, more energy will flow to the species of higher trophic level. Reason (R): Energy loss during transformation from one tropic level to the next will be minimized.
Study the following pyramids of numbers and identify the shape of the pyramid.A) Banyan tree $$\rightarrow$$ Insects $$\rightarrow$$ Parasites on insects
B) Grass plants $$\rightarrow$$ Rabbits $$\rightarrow$$ Wolf
'A' is inverted and 'B' is upright
'A' is upright and 'B' is inverted
Both 'A' and 'B' are inverted
Both 'A' and 'B' are upright
Phosphodiester bonds are seen in the following biomolecules
Choose the living organisms that are being used as biocontrol agents.I. Bacillus thuringiensisII. TrichodermaIII. Dragon flyIV. Tungro virus
I, II & IV
I, III & IV
I, II & III
II, III & Iv
The term 'Ecological pyramid' was introduced by
Natural mutations in plants and animals were first observed by
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