Question

SHORT ANSWER TYPE QUESTIONS

1. What is a natural resource?

2. Mention different types of natural resources.

3. What are major atmospheric regions of atmosphere?

4. What are different aquatic systems? Give examples.

5. What should be the quality of water for drinking?​

Answer 1

Answer:

Answer 1. Natural resources are resources that exist without any actions of humankind. This includes all valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land along with all vegetation, and animal life.

Answer 2. Natural resources can be classified as potential, actual, reserve, or stock resources based on their stage of development. Natural resources are either renewable or non-renewable depending on whether or not they replenish naturally.

Answer 3. troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). ...

Stratosphere. ...

Mesosphere. ...

Thermosphere. ...

Ionosphere. ...

Exosphere. ...

Answer 2

Answer:

An

ANS 1 Natural resouArces are resources that exist without any actions of humankind. This includes all valued characteristics such as commercial and industrial use, aesthetic value, scientific interest and cultural value. On Earth, it includes sunlight, atmosphere, water, land along with all vegetation, and animal life.

ANS 2

renewable and non renewable resources

ANS 3

Troposphere

The troposphere starts at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.

Stratosphere

The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer.

Mesosphere

The mesosphere starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Meteors burn up in this layer

Thermosphere

The thermosphere starts just above the mesosphere and extends to 600 kilometers (372 miles) high. Aurora and satellites occur in this layer.

Ionosphere

The ionosphere is an abundant layer of electrons and ionized atoms and molecules that stretches from about 48 kilometers (30 miles) above the surface to the edge of space at about 965 km (600 mi), overlapping into the mesosphere and thermosphere. This dynamic region grows and shrinks based on solar conditions and divides further into the sub-regions: D, E and F; based on what wavelength of solar radiation is absorbed. The ionosphere is a critical link in the chain of Sun-Earth interactions. This region is what makes radio communications possible.

Exosphere

This is the upper limit of our atmosphere. It extends from the top of the thermosphere up to 10,000 km (6,200 mi).

Ans 4

Examples of aquatic ecosystem include oceans, lakes and rivers. An aquatic ecosystem includes freshwater habitats like lakes, ponds, rivers, oceans and streams, wetlands, swamp, etc. and marine habitats include oceans, intertidal zone, reefs, seabed and so on.

ANS 5 Aesthetic quality of drinking water is extremely important also. Turbidity requirements for public health result in a clear, attractive water in most cases. However, high dissolved solids concentrations, while safe, result in water with a slightly alkaline taste.