Question

the following consist of two statements assertion(A) and reason(R) answer this question selecting the appropriate option given below (i)assertion- construction on big dams has lots of problems associated with them, reason- large ecosystems are destroyed when submerged under the water in Dams (ii)assertion -on adding H2 S o4 to water the resulting aqueous solution get corrosive ,reason- hydronium ions are responsible for corrosive action (iii)Assertion -vermiform appendix is a vestigial organ .reason- it is present in abdominal cavity . option(a) both a and R are True and R is the correct explanation A.(b) Both A and R are true and R is not the correct explanation for A.(c)A is true but R is false.(d)A is false but R is true

Answer 1

Answer:

option a will be d ri8 answer

Explanation:

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Answer 2

Answers to the options are given below -

(I) (a) both a and R are True and R is the correct explanation A

Construction of dams causes storage of water restricting it's flow. The occurrence of stagnant water cause problem to habitat adapted to flowing water.

(II) (a) both a and R are True and R is the correct explanation A

Hydronium ions are responsible for corrosion as being charged entities they readily react with elements, decreasing their concentration and hence corroding them.

(III) (b) Both A and R are true and R is not the correct explanation for A.

Vermiform appendix had earlier been considered as vestigial organ due to no harm on its removal. Although researchers have found its importance as storehouse of useful microbes. It is found at large intestine.