Worksheet: Soils | Geography for Grade 11 PDF Download

Fill in the Blanks

Q1: Soil is the mixture of __________ and __________ which develop on the earth's surface.

Q2: 'Horizon A' in the soil profile is the topmost zone, rich in __________ and necessary for plant growth.

Q3: Alluvial soils cover about __________ percent of the total area of India.

Q4: Black soils are also known as __________ soil.

Q5: Red soil develops on __________ rocks in areas of low rainfall.

Q6: Laterite soils are the result of intense leaching due to __________.

Q7: Arid soils are characterized by their sandy structure and __________ nature.

Q8: Saline soils contain a larger proportion of __________, __________, and __________.

Q9: Peaty soils are found in areas of heavy __________ and high humidity.

Q10: Soil degradation is defined as the decline in soil __________ and __________.

Assertion and Reason Based

Q1: Assertion: Alluvial soils in India are rich in phosphorous.
Reason: These soils are formed by the deposition of weathered material carried by rivers.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.

Q2: Assertion: Black soils are highly suitable for tree crops like cashewnut.
Reason: Black soils have a high content of organic matter.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.

Q3: Assertion: Saline soils are fertile and support extensive vegetative growth.
Reason: These soils contain a large proportion of sodium, potassium, and magnesium.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.

Q4: Assertion: Peaty soils have a low organic content.
Reason: These soils are found in areas of high humidity and heavy rainfall.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.

Q5: Assertion: Soil conservation is mainly needed in areas with flat terrain.
Reason: Soil erosion is not a significant issue in hilly regions.
(a) Both Assertion and Reason are true, and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are true, but Reason is not the correct explanation of the Assertion.
(c) Assertion is true, but Reason is false.
(d) Assertion is false, but Reason is true.

Very Short Answer Type Questions

Q1: List the major factors affecting soil formation.

Q2: Define 'Horizon A' in the soil profile.

Q3: What are Khadar and Bhangar soils?

Q4: Explain why black soil retains moisture for a long time.

Q5: What causes the reddish color in red soil?

Q6: Why are laterite soils not suitable for cultivation without amendments?

Q7: Mention the regions in India where arid soils are commonly found.

Q8: What characterizes saline soils, and where are they found in India?

Q9: Describe the characteristics of peaty soils.

Q10: What is the primary cause of soil erosion in hilly regions?

Short Answer Type Questions

Q1: Discuss the characteristics and distribution of black soil in India.

Q2: Explain the formation and characteristics of red and yellow soil.

Q3: Describe the factors responsible for the development of laterite soils.

Q4: Discuss the properties and challenges associated with arid soils in India.

Q5: Explain the characteristics and distribution of saline soils in the country.

Q6: Discuss the unique characteristics of peaty soils and their geographical distribution in India.

Q7: What are forest soils, and how do their properties vary in different regions of India?

Q8: Define soil degradation and discuss its causes and consequences.

Long Answer Type Questions

Q1: Explain the concept of soil conservation and its significance in agriculture. Provide examples of soil conservation methods.

Q2: Discuss the causes and consequences of soil erosion in India, highlighting its impact on agriculture and the environment.

Q3: Compare and contrast the characteristics of alluvial soils, black soils, and red soils in terms of their formation, properties, and agricultural significance.

Q4: Analyze the challenges associated with soil degradation in India and propose solutions to mitigate this issue, emphasizing the role of sustainable agricultural practices and government initiatives.