Tag: properties of natural resources

Quizzes (7) Questions (110)

Questions Related to properties of natural resources

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

Which of the following soils is suitable for cultivation of almost all kinds of crops?

  1. Black soil

  2. Red soil

  3. Laterite soil

  4. Alluvial soil
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Alluvium is loose, unconsolidated soil or sediment that has been eroded, reshaped by water in some form, and redeposited in a non-marine setting. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel. When this loose alluvial material is deposited or cemented into a lithological unit, or lithified, it is called an alluvial deposit.

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

India is an agricultural country and possesses fertile plains and numerous perennial rivers. About 72 per cent of its population resides in the rural areas. Nearly 70 per cent of the people are dependent on agriculture. About three-fourths of the cultivated land of India is used for food production because.

  1. The soil is suitable for food crops

  2. India is an exporter of food grains

  3. India has to feed a large population

  4. Per capita consumption of food in India is the highest in the world
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The text states that three-fourths of the cultivated land is used for food production. This is primarily because the soil is suitable for food crops, which supports the needs of the population.

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

Which of the following is a human input for agriculture?

  1. Relief of the land

  2. Climate of the area

  3. Irrigation facilities

  4. Soil quality
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Agricultural inputs are classified into two types.

1. Human inputs: Labour (workers), Machinery (tractors, combine harvesters, etc.), Buildings (barns, silos), seed to grow crops, animal feed, fertilisers and pesticides, calves, chicks, piglets, etc. (small animals brought to rear and later sell).

2. Natural inputs: Soil, precipitation, sun, alluvium, relief, drainage.

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

The most fertile soil of India is __________.

  1. Alluvial soil

  2. Red soil

  3. Laterite soil

  4. Mountain soil
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Alluvial soils are formed mainly due to silt deposited by Indo-Gangetic-Brahmaputra rivers. They are the largest soil group covering about 15 lakh sq km or about 6 percent of the total area. They support more than 40% of India’s population by providing the most productive agricultural lands.

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

The soils which have supported agriculture for centuries without much manuring or fallowing are _____________.

  1. alluvial and late rite soils

  2. red and laterite soils

  3. black and alluvial soils

  4. laterite and black soils
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Black soils (regur) and alluvial soils are known for their high fertility and ability to sustain agriculture over long periods without intensive manuring.

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

Black soils are ideal for cultivation of cotton because ______________.

  1. their colour is black

  2. they can retain moisture

  3. they are made of lava

  4. they are found on plateau regions
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Black soil is ideal for growing cotton and is also known as black cotton soil. These soils are made up of extremely fine i.e. clayey material. They are well-known for their capacity to hold moisture.  

Multiple choice geography properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

Which of the following soil is the most fertile?

  1. Black soil

  2. Alluvial soil

  3. Red soil

  4. Laterite soil
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alluvial soils as a whole are very fertile. Mostly these soils contain an adequate proportion of potash, phosphoric acid and lime which are ideal for the growth of sugarcane, paddy, wheat and other cereal and pulse crops. Due to its high fertility, regions of alluvial soils are intensively cultivated and densely populated.

Multiple choice biology properties of natural resources properties of soil soil pollution and its effects soil and soil pollution

Fragmentation, leaching and catabolism are some of the important steps of decomposition. Study the following statements [(i), (ii) and (iii) regarding these and select the correct option.
(i) Detritivores(e.g., earthworm) breakdown detritus into smaller particles.
(ii) Water soluble inorganic nutrients go down into soil horizon and get precipitated as unavailable salts.
(iii) Decomposes(e.g., bacteria and fungi) secrete digestive enzymes and degrade detritus into simpler inorganic substances.

  1. Leaching-(i), Fragmentation- (ii), Catabolism-(iii)

  2. Leaching-(ii), Fragmentation-(ii), Catabolism-(i)

  3. Leaching-(ii), Fragmentation-(i), Catabolism-(iii)

  4. Leaching-(ii), Fragmentation-(iii), Catabolism-(i)
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The process of decomposition can be categorized as fragmentation of detritus, leaching, and catabolism.
Fragmentation of detritus is the process that causes breakdown of detritus into smaller particles. It is primarily due to the action of detritus feeding invertebrates(detritivores, e.g., termites, earthworms, etc.,) The detritus gets pulverized when passing through the digestive tracts of animals. Due to fragmentation, the surface area of detritus particles is greatly increased.
The extracellular enzymes released by bacteria and fungi carry out catabolism, i.e., enzymatic conversion of the decomposing detritus to simpler and inorganic substances.
Leaching is the process by which dissolved nutrients are moved into lower layers of soil or groundwater to form unavailable salts.
So, the correct answer is 'Leaching-(ii), Fragmentation-(i), Catabolism-(iii)'.