Question

M.C.Q.
1)Which of the following phenomena always result in the cooling effect?
a)condensation
b)evaporation
c)sublimation
d)none of these

2)The boiling point of water at sea level is _______.
a)0°C. b)273 K
c)373 K. d)273°C

3)Dry ice is _______.
a)water in solid state
b)water in gaseous state
c)co2 in liquid state
d)co2 in solid state

4)Chromosomes are made up of________.
a)DNA b)Protein
c)DNA and Protein d)RNA

5)________is called the energy currency of the cell.
a)Carbon dioxide b) Oxygen
c)ATP d)Mitochondria​

Answer 1

Answer:

1. b
2. c
3. d
4. c
5. d

Explanation:

hope it helps

gud luck

Answer 2

Answer:

1) A) Condensation

2) C) 373 k

3) A) Water in solid state

4) C) DNA and Proteins

5) C) ATP