Tag: biology

Quizzes (1160) Questions (12174)

Questions Related to biology

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

Laterization is a process that results in the

  1. Degradation of soil

  2. Purification of water

  3. Formation of soil

  4. Sterilization of soil
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Laterization is a prolonged process of chemical weathering of rocks leading to the formation of soil. It produces a variation in the thickness, grade, chemistry and ore mineralogy of the rock creating soil particles. Thus the correct answer is option C.

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

The soil is formed by the breaking down of rocks by the action of

  1. Wind

  2. Water

  3. Climate

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The soil is formed by weathering, it is the process of breaking down of rocks by the action of heavy wind, water flow and climate. Breaking down of small particles of rocks mix with humus, make it soil fertile. Thus, the correct option is D.

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

Weathering of rocks occurs due to

  1. Strong winds

  2. Flowing water

  3. Heating and cooling of rocks

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Strong winds, flowing water and heating and cooling of rocks leads to its breakdown. They break the tough rock particles and convert them into smaller ones. They also create cracks in them.

So, option D is the correct answer.

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

Which three layers form the soil profile?

  1. Air, water and soil

  2. Minerals, organic matter and living organisms

  3. Clay, silt and sand

  4. The topsoil, subsoil and parent material
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A soil profile is a vertical section of soil that displays its various layers, known as horizons. The primary horizons are typically classified as topsoil (A-horizon), subsoil (B-horizon), and parent material (C-horizon).

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

Which of the following is known as the parent material in the formation of soil?

  1. Sand

  2. Stone

  3. Rocks

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Soil is mainly formed due to the weathering of large rocks. The action of abiotic factors on the rocks leads the gradual conversion into the layer of soil. The process of soil formation is known as pedogenesis. Soil is the mixture of minerals, organic matter, gasses, liquids, and the countless organisms that together support life on the earth. The mineral riches of soil provides fertility to the soil and hence, help the plants to grow well. 

So, the correct answer is option B.

Multiple choice soil as a natural resource natural resources - air, water and land land physical resources biology

Match List-I with List-II and select the correct answer.

List-I List-II
a. Broad leaf $1$. Social forestry
b. Growing squabble $2$. Deforestation
c. Soil erosion $3$. Afforestation
d. Silviculture $4$. Deciduous forest
  1. A-$4$, B-$1$, C-$2$, D-$3$
  2. A-$1$, B-$3$, C-$2$, D-$4$
  3. A-$3$, B-$1$, C-$2$, D-$4$
  4. A-$4$, B-$1$, C-$3$, D-$2$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Broad leaf corresponds to deciduous forest, growing squabble (likely a typo for social forestry/afforestation context) matches social forestry, soil erosion is caused by deforestation, and silviculture is the practice of afforestation.