Question

C. Answer these questions.
1. Give two uses of water.
2. Where is frozen water found?
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3. How much water is lost by our body?
4. What is photosynthesis?
5. What is marine life?
6. What are phytoplanktons?
7. How can we prevent pollution of sea water?
8. How do seas and oceans sustain life?
9. What do you know about water cycle?
10. List a few marine plants and animals.​

Answer 1

Answer:

1ans: Direct purposes include bathing, drinking, and cooking, while examples of indirect purposes are the use of water in processing wood to make paper and in producing steel for automobiles.

...

• The most common water uses include:
• Drinking and Household Needs.
• Recreation. up
• Industry and Commerce.
• Agriculture.
• Thermoelectricity/Energy.

2ans: Most of that is in oceans, rivers, and lakes, but some is frozen in the Earth's two ice sheets. Those ice sheets, which cover most of Greenland and Antarctica, only contain 2% of the world's total water supply, but a whopping 70% of the Earth's fresh water.

3ans: Depending on the body's needs, the kidneys may excrete less than a pint or up to several gallons (about half a liter to over 10 liters) of urine a day. About 1½ pints (a little less than a liter) of water are lost daily when water evaporates from the skin and is breathed out by the lungs.

4ans: the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

5ans: Marine life, or sea life or ocean life, is the plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms produce oxygen and sequester carbon.

Explanation:

6ans: Phytoplankton are the autotrophic components of the plankton community and a key part of oceans, seas and freshwater basin ecosystems. The name comes from the Greek words φυτόν, meaning "plant", and πλαγκτός, meaning "wanderer" or "drifter".

7ans:

• Reduce Your Use of Single-Use Plastics. ...
• Recyclers Properly. ...
• Participate In (or Organize) a Beach or River Cleanup. ...
• Support Bans. ...
• Avoid Products Containing Microbeads. ...
• Spread the Word. ...
• Support Organizations Addressing Plastic Pollution.

8ans: To maintain the quality of life that the oceans have provided to humankind, while sustaining the integrity of their ecosystems.

9ans: The water cycle, also known as the hydrologic cycle or the hydrological cycle, describes the continuous movement of water on, above and below the surface of the Earth.

10ans:

The plants

• Algae.
• Sea Grasses.
• Phytoplankton.
• Coral Reefs.
• Seaweed.
• Marsh Grasses.
• Sea Anemones.
• Sea Cabbage.

The animals

• Whales
• Sea Otters
• Fish
• Mollusks
• Crustaceans

Answer 2

Answer:

1) Water can be used for direct and indirect purposes. Direct purposes include bathing, drinking, and cooking, while examples of indirect purposes are the use of water in processing wood to make paper and in producing steel for automobiles. The bulk of the world's water use is for agriculture, industry, and electricity.

2)The cryosphere is the frozen water part of the Earth system.

One part of the cryosphere is ice that is found in water. This includes frozen parts of the ocean, such as waters surrounding Antarctica and the Arctic. There are places on Earth that are so cold that water is frozen solid

3) Depending on the body's needs, the kidneys may excrete less than a pint or up to several gallons (about half a liter to over 10 liters) of urine a day. About 1½ pints (a little less than a liter) of water are lost daily when water evaporates from the skin and is breathed out by the lungs.

4) Shares. Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere. (Image: © KPG_Payless | Shutterstock) Photosynthesis is the process used by plants, algae and certain bacteria to harness energy from sunlight and turn it into chemical energy.

5) Marine life, or sea life or ocean life, is the plants, animals and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms produce oxygen and sequester carbon.