EASY

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Explain the characteristic features of laterite soil.

Important Questions on Rocks and Soil

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Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Give the differences between sandy soil and loam.

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Loamy soil mainly contains _____.

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Which soil is best for plant growth and why?

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Presence of humus is bad for the soil.

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Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Name the soil that can hold enough air and water.

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Why is sandy soil not fit for growing crops?

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Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

What does the given picture show?

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MEDIUM

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Neelam took 200 g soil. She placed it on a newspaper in the Sun and allowed it to dry for 2 hours. After drying it, she observed that the weight of the soil is reduced to 190g. Calculate the percentage of moisture in the soil sample.

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Which soil is used for making buildings?

HARD

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

A gardener in a park collects the leaf litter and burns them. Can you suggest a better method to clear the park of the leaf litter?

MEDIUM

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

How would you show that soil contains water?

HARD

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Which soil is best suitable for crops? Why?

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Humus contains the remains of dead

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Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Alex is a soil specialist, and he sells manure best suited for wheat. He goes to a village where farmers are planning to sow wheat which grows best in a clayey and loamy soil. He tests the soil sample and finds that the soil is more suitable for the growth of cotton rather than wheat. He tells the villagers about this despite knowing that they will not buy his manure.
(a) Why clayey-loamy soil is preferred for growing wheat?
(b) Which value is shown by Alex?

MEDIUM

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Which soil is best for growing plants?

EASY

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

The soil with big particles and a lot of space between them is

MEDIUM

Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

The water holding capacity is highest in a loamy soil.

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Science>Biology>Rocks and Soil>Soil: Composition, Soil Profile, Types, Erosion and Conservation

Why is loamy soil best for growing crops?