What is the color of clayey soil?
a) Red
b) Black
c) White
d) Yellow
Answer: a) Red
Which type of soil is used in making glass and cement?
a) Sandy soil
b) Loamy soil
c) Clayey soil
d) Rocky soil
Answer: a) Sandy soil
What do earthworms contribute to the soil?
a) Water
b) Air
c) Nutrients and tunnels
d) Humus
Answer: c) Nutrients and tunnels
What is the primary purpose of adding manure to the soil?
a) Increase temperature
b) Enhance fertility with humus
c) Reduce soil erosion
d) Change soil color
Answer: b) Enhance fertility with humus
Which material does not come from the soil?
a) Bricks
b) Cement
c) Glass
d) Plastic
Answer: d) Plastic
Where is loamy soil often found?
a) Deserts
b) Riverbeds
c) Mountain foothills
d) Valleys surrounding rivers
Answer: d) Valleys surrounding rivers
Which soil type is smooth to touch and sticks together closely?
a) Sandy soil
b) Loamy soil
c) Clayey soil
d) Rocky soil
Answer: c) Clayey soil
What is the significance of humus in soil?
a) Increases soil acidity
b) Makes soil hard
c) Enhances fertility
d) Causes soil erosion
Answer: c) Enhances fertility
