A statement of idea which gives an explanation to a sense of observation is 

B) Cells are arranged in circular

(a) The mighty Himalayas in the north and the vast Indian Ocean, the Arabian Sea and the Bay of Bengal in the south west and east respectively provide a natural...

C) Hypothesis

Correct Answer - C `-do-`

Correct Answer - D These are facts.

Correct Answer - C Explanation is correct reason for statements.

Correct Answer - D Both are facts

Correct Answer - D Both statement and explanation are correct.

Correct Answer - C Explanation is correct reason for statement