Question

3. Which of the following is a molecule?
A. N
B. Cl2
C. Co
D. K
4. The process of seeping of water into the ground is called
A. Evaporation
B. Sedimentation
C. Transpiration
D. Infiltration
5. A man digging the ground near a water body found that the soil was moist. As
he kept digging deeper and deeper he reached a level where all the spaces
between particles of soil and gaps between rocks were filled with
water. The upper limit of this layer is called;
A. Water level
B. Ground water
C. Water table
D. Water limit
6. 10 g of ammonium nitrate are added to water at 25 °C and the mixture stirred.
The ammonium nitrate dissolves and, after one minute, the temperature of the
solution is 10 °C. Which word describes this change?
A. Endothermic
B. Exothermic
C. Neutralization
D. Reduction

Answer 1

3.b.Cl2
4.d.inflitration
5.c.water table
6.a.endothermic