Tag: biology

Questions Related to biology

Farmers utilized large amount of groundwater by:

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. wells

  2. over pumping of groundwater

  3. both A and B

  4. none of the above

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Correct Option: B
Explanation:

Farmers utilized a large amount of groundwater by over-pumping of groundwater.

The solid form, snow and ice, is present as

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. Ice caps at the poles of the earth.

  2. Snow-covered mountains.

  3. Glaciers.

  4. Ice caps at the poles of the earth, snow-covered mountains and glaciers.

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Correct Option: D
Explanation:

The solid form, snow and ice, is present as ice caps at the poles of the earth,  snow-covered mountains and glaciers.

What is melting point of water?

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. 6 C

  2. 0 C

  3. 9 C

  4. 10 C

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Correct Option: B

For most of the cities water is drawn from 

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. Rivers.

  2. Lakes.

  3. Ponds or wells.

  4. All of the above.

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Correct Option: D
Explanation:

 The water is drawn from nearby lakes, rivers, ponds or wells and is supplied through a network of pipes. 

The continuous cycling of water among its three forms keeps:

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. the total amount of water on the earth constant

  2. the total amount of water on the earth decreasing continuously

  3. water fresh

  4. none of these

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Correct Option: A
Explanation:

The continuous cycling of water among its three forms keeps the total amount of water on the earth constant.

Which of the following spatial units is the largest in terms of scale?

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. River segments

  2. Mesohabitats

  3. Patches

  4. River reaches

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Correct Option: A

Which year was declared as the "Water Year" by Indian government

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. 2010

  2. 2004

  3. 2007

  4. 2000

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Correct Option: C

Mullets, bhetki, pearl spots, prawns, mussels are the examples of 

biology water a precious resource sources of water and water cycle availability and forms of water the water cycle

  1. marine fish

  2. fresh water fish

  3. finned fish

  4. shell fish.

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Correct Option: B
Explanation:

Fresh water fisheries are found in ponds, tanks, rivers and various water bodies catla, rohu, mullets, and bhetki are some fresh water fisheries. They have important contribution to the growth of the economy of the country. There has been a very impressive growth in fish production during 1990's in the country.

Which of the following hormones is secreted by the kidney?

biology control and coordination in living organisms kidney hormones coordination in human beings- chemical control endocrine system in humans

  1. Renin

  2. Renomedullary prostaglandin

  3. Erythropoietin

  4. All of the above

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Correct Option: D
Explanation:

The human kidney secretes many hormones: erythropoietin (EPO), calcitriol, vitamin $D _3$, as well as the enzyme renin. The kidneys also produce prostaglandins.

Which of the following is NOT produced by kidneys?

biology chemical coordination and integration kidney hormones coordination in human beings- chemical control endocrine system in humans

  1. Calcitriol

  2. Erythropoietin

  3. Angiotensinogen

  4. Renin

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Correct Option: C
Explanation:

Calcitrol is produced by the cells of the proximal tubule of the nephron in the kidneys. Erythropoietin is also produced by the kidney. Renin is secreted by the juxtaglomerular kidney cells. Angiotensinogen is a component of the renin-angiotensin (RAS) system and is released into circulation mainly by the liver. So, the correct answer is 'Angiotensinogen'.