Test: Natural Resource Water And Soil


10 Questions MCQ Test Science Class 9 | Test: Natural Resource Water And Soil


Description
This mock test of Test: Natural Resource Water And Soil for Class 9 helps you for every Class 9 entrance exam. This contains 10 Multiple Choice Questions for Class 9 Test: Natural Resource Water And Soil (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Natural Resource Water And Soil quiz give you a good mix of easy questions and tough questions. Class 9 students definitely take this Test: Natural Resource Water And Soil exercise for a better result in the exam. You can find other Test: Natural Resource Water And Soil extra questions, long questions & short questions for Class 9 on EduRev as well by searching above.
QUESTION: 1

Out of the total land area, how many million hectares of land suffer from degradation?

Solution:

175 million hectares of land area suffer from degradation. Land degradation is caused largely by soil erosion but also by water logging and excessive salinity. The high degree of degradation will affect the existing land resources.

QUESTION: 2

Identify the incorrect statement.

Solution:
QUESTION: 3

Breakdown of bigger rocks into fine smaller mineral particles is called:

Solution:
QUESTION: 4

Which of the following mainly decides biodiversity in a particular area?

Solution: Good topsoil should be nutrient and mineral rich and promote the growth of plants in your lawn or garden. Topsoil is the layer on top of the subsoil, and it sometimes differs because it has a high amount of organic matter, is nutrient rich, and has low salts.
QUESTION: 5

Which is not a function of humus?

Solution:
QUESTION: 6

Which of the following does not cause water pollution?

Solution: Dissolved oxygen in water body because oxygen is pure gas it is safe and pure for living beings to intake as we know that human beings breathes in oxygen and release carbon dioxide so this implies oxygen is a pure gas and not dangerous for anything even not for water.
QUESTION: 7

Approximately 70 percent of the earth is covered by water. Of this amount, approximately _____ percent of it is suitable for human use.

Solution:
QUESTION: 8

The rate of soil erosion is faster in:

Solution:
QUESTION: 9

Which type of soil is best for growing cotton?

Solution:
QUESTION: 10

Forests prevent soil erosion by binding soil particles in their

Solution: Ground water is not source of pure water because when rain water(fresh water) come in contact with ground it combined with ground mineral and became impure.