2)Carbon cycle

Which of the following statements are correct (i) Positron is predicted by Dirac and discovered by Anderson (ii) Liquid drop model of nucleus by Bohr and Wheeler is developed (iii) Carbon cycle was proposed by Bethe (iv) Fission reaction is first observed Otto Hahn and Strass man

Carbon cycle includes (the following is a logical sequence)

Select the pairs of sediamentary biogeochemical cycles. I. Hydrogen cycle and water cycle II. Phosphorus cycle and sulphur cycle III. Calcium cycle and magnesium cycle IV. Carbon cycle and nitrogen cycle

Bacteria are essential in carbon cycle as:-

Phosphorus cycle differs from carbon cycle as the former

Select the WRONG statements regarding carbon cycle.

Which of the following is the logical sequence of carbon cycle ?

Which of the following statements about carbon cycle is not true :-

Explain the carbon cycle with the help of a simplified model.

Explain the carbon cycle with the help of a simplified model.