The document presents a series of questions and answers related to physics, biology, and chemistry. It includes information about units of electric current, types of energy, classification in taxonomy, the principles of exothermic reactions, and the process of photosynthesis. Key concepts covered include the role of carbon dioxide and light in photosynthesis and the effect of carbon dioxide concentration on plant growth.

1. Electric current may be
expressed in which one of
the following units?

2. coulombs/second

3. A person sitting in a moving car has _________energy.

4. both KE and PE

5. What are Jacobson's organs?

6. two pits present on the plate of the snake

7. What kind of quantity is work?

8. Scalar

9. Each rank of classification is called:

10. Taxon

11. Enthalpy of products of exothermic reaction is_________.

12. lower

13. A cream separator works on the principle of

14. Centrifugal force

15. Which gas is needed for photosynthesis?

16. Carbon dioxide

17. What type of energy is required for photosynthesis to happen?

18. Light

19. What is the waste by-product of photosynthesis?

20. Oxygen

21. Tomatoes in a greenhouse grow faster if the carbon dioxide concentration is
increased. Why is that?

22. Carbon dioxide concentration must have been
a limiting factor earlier.