Last updated on December 9th, 2023 at 10:29 pm
MCQ on Class 3 SST Rocks and Soil
“Engage in interactive learning with MCQs on Class 3 Rocks and Soil. Test knowledge on rock types, soil composition, plant growth, and the impact of soil on agriculture in a fun and educational way.”
[1] What are rocks primarily made up of?
a) Minerals
b) Soil
c) Plants and animals
d) Water and wind
Answer: a) Minerals
[2] Which type of rock is the hardest?
a) Coal
b) Granite
c) Chalk
d) Diamond
Answer: d) Diamond
[3] How do rocks break into smaller pieces over time?
a) Volcanic eruptions
b) Human activities
c) Action of sunlight, water, and wind
d) Changes in weather
Answer: c) Action of sunlight, water, and wind
[4] What are the two main components of soil?
a) Rocks and minerals
b) Sunlight and water
c) Plants and animals
d) Rocks and rotted plant/animal matter
Answer: d) Rocks and rotted plant/animal matter
[5] Which rock type is soft and easily breakable?
a) Coal
b) Granite
c) Chalk
d) Diamond
Answer: c) Chalk
[6] What is the term for rotted plants and animals in soil?
a) Humus
b) Minerals
c) Rocks
d) Soil particles
Answer: a) Humus
[7] What is the color of humus?
a) Light brown
b) Dark brown or black
c) Red
d) White
Answer: b) Dark brown or black
[8] Why is humus beneficial for the healthy growth of plants?
a) It provides minerals to plants
b) It helps retain water in the soil
c) It improves soil fertility
d) All of the above
Answer: d) All of the above
[9] What causes the variation in soil color?
a) Presence of humus
b) Different types of rocks
c) Seasonal changes
d) Sunlight exposure
Answer: b) Different types of rocks
[10] What fills the spaces between the soil particles?
a) Water only
b) Air only
c) Water and air
d) Humus
Answer: c) Water and air
