A. Tick the correct option: 1. In addition to the rock particles, the soil contains :
(a) air and water
(b) water and plants
(C) minerals, organic matter, air and water
(d) water, air and plants

2. The water holding capacity is
the highest in:
(a) sandy soil
(b) clayey soil
(c) loamy soil
(d) mixture of sand and loam

3. Which of the following organisms contribute to soil formation?
(a) Bacteria
(b) Fungi
(c) Earthworm
(d) All of these

4. Which type of soil is good for farming?
(a) Clayey soil
(b) Sandy soil
(c) Loamy soil
(d) Both (a) and (c)

5. Which of the following cause soil pollution?
(a) Insecticides
(b) Manure
(c) Fertilizers
(d) Both (a) and(c)