Tag: evs

Questions Related to evs

Tectonics is the study of .................

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Volcanos

  2. Earth's crust

  3. Sand dunes

  4. Sun

Show answer
Correct Option: B
Explanation:

Tectonic is the study of the earth's crust. Tectonics is concerned with the processes which control the structure and properties of the Earth's crust, and its evolution through time. It was considered that earth was made up of tectonic plates. Tectonics also provides a framework to understand the earthquake and volcanic belts which directly affect much of the global population. Tectonic studies are important for understanding erosion patterns in geomorphology and search for petroleum and metallic ores. 

Therefore, the correct answer is option B.

Mulching helps in

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Soil fertility

  2. Moisture conservation

  3. Improvement of soil structure

  4. Soil sterility

Show answer
Correct Option: B
Explanation:

Mulching refers to covering of harvested field with plant litter or polythene of low density, in order to decrease run off, prevent growth of weeds and retention of water.

Which of the following pairs is mismatch?

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Pedology - Study of soil 

  2. Physiology - Study of processes and functions of life

  3. Kinesiology - Study of fossils

  4. Limnology - Study of fresh water ecosystems

Show answer
Correct Option: C
Explanation:

  • Pedology is the study of soils in their natural environment. It is one of two main branches of soil science.
  • Physiology is the branch of biology that deals with the normal functions and processes of living organisms and their parts.
  • Kinesiology is the scientific study of human or non-human body movement. Kinesiology addresses the physiological, biomechanical, and psychological dynamic principles and mechanisms of movement.
  • Limnology is the study of the biological, chemical, and physical features of lakes and other bodies of fresh water.
So, the correct answer is 'Kinesiology - Study of fossils'.

The top most layer of the earth that supports life is called as

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Rocks

  2. Soil

  3. Air

  4. Water

Show answer
Correct Option: B

Pedology is science of

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Earth

  2. Soil

  3. Diseases

  4. Pollution

Show answer
Correct Option: B
Explanation:

Pedology is the study of soils in their natural environment. It is one of two main branches of soil science, the other being edaphology. Pedology deals with pedogenesis, soil morphology, and soil classification, while edaphology studies the way soils influence plants, fungi, and other living things. The quantitative branch of pedology is called pedometrics. Hence, pedology is the science of soil.

So, the correct answer is 'soil'.

Edaphic factors are related to

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Soil

  2. Animal

  3. Man

  4. Temperature

Show answer
Correct Option: A
Explanation:

(a) Soil; because man and animals are biotic factors and temperature is climatic factor.

Edaphology is

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Study of snakes

  2. Study of amphibians

  3. Study of elephants

  4. Study of soils

Show answer
Correct Option: D
Explanation:

Edaphology is concerned with the influence of soils on living things, particularly plants. It includes the study of how soil influences humankind's use of land for plant growth as well as man's overall use of the land. It is one of two main divisions of soil science, the other being pedology. Hence, edaphology is the study of soils.

So, the correct answer is 'Study of soils'.

The uniform peeling away of the soil surface by the action of flowing water is called _____________.

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Slip erosion

  2. Till erosion

  3. Accelerated erosion

  4. Sheet erosion

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Correct Option: A

Which one of the following pairs is NOT correctly matched?

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Therophytes - Surviving buds lies well above the soil surface

  2. Cryptophytes - Surviving buds lie under soil surface

  3. Hemicryptophyte - Surviving buds lie on the soil surface

  4. Chemiphytes - Surviving buds lie close or above the soil surface

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Correct Option: A

Top soil contains which of the following?

evs mud and stones importance of soil in agriculture soil - formation, profile and properties soil as a natural resource

  1. Humus and living organisms only.

  2. Humus and soil particles only.

  3. Humus, living organisms and plants.

  4. Humus, living organisms and soil particles.

Show answer
Correct Option: D
Explanation:

Top soil is the topmost and outermost layer of the soil, which is usually 2 inches to 8 inches layer. It is generally dark in colour due to humus, i.e., partially decayed organic matter, soil particles and living organisms as soil bacteria etc.