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
[11] Which type of soil is soft, smooth to the touch, and mostly contains clay?
a) Gravelly soil
b) Sandy soil
c) Clayey soil
d) Humus-rich soil
Answer: c) Clayey soil
[12] Which is the characteristic of clayey soil?
a) Large spaces between soil particles
b) Allows easy water movement
c) Holds a lot of water and is sticky
d) Suitable for most plant growth
Answer: c) Holds a lot of water and is sticky
[13] Why do most plants not grow well in clayey soil?
a) Lack of air in the soil
b) Water cannot penetrate easily
c) Excessive sand content
d) Insufficient nutrients
Answer: b) Water cannot penetrate easily
[14] What is sandy soil characterized by?
a) Small particles with little air space
b) Holds a lot of water and is sticky
c) Water easily passes through with large spaces between particles
d) Suitable for most plant growth
Answer: c) Water easily passes through with large spaces between particles
[15] Which soil type can hold both water and air, and contains humus?
a) Sandy soil
b) Clayey soil
c) Loam soil
d) Gravelly soil
Answer: c) Loam soil
[16] In which type of soil do most plants grow well?
a) Clayey soil
b) Sandy soil
c) Loam soil
d) Gravelly soil
Answer: c) Loam soil
[17] What do plants take from the soil for their growth?
a) Sunlight and air
b) Water and minerals
c) Humus and sand
d) Fertilizers and manure
Answer: b) Water and minerals
[18] Which type of soil is suitable for rice cultivation?
a) Sandy soil
b) Clayey soil
c) Loamy soil
d) Gravelly soil
Answer: b) Clayey soil
[19] Which type of soil is suitable for growing Bajra?
a) Sandy soil
b) Clayey soil
c) Loamy soil
d) Gravelly soil
Answer: a) Sandy soil
[20] Why are manures and fertilizers added to the soil?
a) To increase water content in the soil
b) To improve soil texture
c) To repel insects and pests
d) To enhance soil color
Answer: b) To improve soil texture
[21] What do we use soil for in building houses?
a) Making bricks
b) Growing plants
c) Extracting minerals
d) Creating artificial landscapes
Answer: a) Making bricks
