Question

answer this fast pls fast urgent hai​

Answer 1

Hey mate,

Hey mate, Here's your answer.. ☺

A.

⏩Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants through tiny openings in the plant’s leaves. Oxygen moves out of the plant leaf through these same openings.

⏩All animals, including humans, require oxygen to survive. Animals breathe in the oxygen made by plants and breathe out carbon dioxide as a waste product. Even animals that live underwater need oxygen. These animals pass water over their gills to take in dissolved oxygen that is made by water plants. The water plants in turn take in the dissolved carbon dioxide from the water.

⏩Animals and plants are connected to each other by the oxygen-carbon dioxide cycle. Plants need the carbon dioxide from animals to live and animals must have the oxygen from plants to survive.

B.

⏩The most important part of the cycle is bacteria.

⏩Bacteria help the nitrogen change between states so it can be used.

⏩When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants.

⏩Animals then get their nitrogen from the plants.

C.

⏩All plants and animals need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use.

⏩When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water.

⏩Bacteria alter the nitrogen into a form that plants are able to use.

D.

⏩Nitrogen fixation: The chemical processes by which atmospheric nitrogen is assimilated into organic compounds, especially by certain microorganisms as part of the nitrogen cycle.

⏩Nitrification:

• Nitrification is the biological oxidation of ammonia to nitrite followed by the oxidation of the nitrite to nitrate.
• The transformation of ammonia to nitrite is usually the rate limiting step of nitrification. Nitrification is an important step in the nitrogen cycle in soil.

Hope it helps.❤

Answer 2

Answer:

a. Plants use carbon dioxide in a process known as photosynthesis. During photosynthesis, plants give off oxygen as a waste product. Carbon dioxide moves from the air into the leaves of plants through tiny openings in the plant's leaves. Oxygen moves out of the plant leaf through these same openings.

b. The most important part of the cycle is bacteria. Bacteria help the nitrogen change between states so it can be used. When nitrogen is absorbed by the soil, different bacteria help it to change states so it can be absorbed by plants. Animals then get their nitrogen from the plants.

c. All plants and animals need nitrogen to make amino acids, proteins and DNA, but the nitrogen in the atmosphere is not in a form that they can use. ... When organisms die, their bodies decompose bringing the nitrogen into soil on land or into ocean water.

d. Nitrogen fixation is the process in which the atmospheric nitrogen is fixed by certain bacteria into ammonia.Nitrification is the process in the ammonia is oxidized into nitrite which is further oxidized nitrates.Both nitrogen fixation and nitrification are important parts of nitrogen cycle.