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alexandr1967 [171]
2 years ago
13

Ozone in the troposphere is necessary to protect Earth's surface from harmful UV radiation.

Biology
1 answer:
romanna [79]2 years ago
7 0

Answer:

False

Explanation:

In the troposphere, near the Earth's surface, human activities lead to ozone concentrations several times higher than the natural background level. Too much of this ground-level ozone is 'bad' as it is harmful to breathe and also damages vegetation.

The stratosphere or “good” ozone layer extends upward from about 6 to 30 miles and protects life on Earth from the sun's harmful ultraviolet (UV) rays.

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A soup of chemicals and complex structures which carry out all of the activities of the cell
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Answer:

4) Cytoplasm

Explanation:

The cytosol (cytoplasm) is the "soup" within which all the other cell structures reside and where most of the cellular metabolism occurs.

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2 years ago
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Help me..In these MCQ'S.<br>. #No spam..​
WINSTONCH [101]

Answer:

1)Biodiversity of an area refers to the vast number of species of plants, animals and microorganisms existing in that  area.

2)Fauna refers to animals, whereas flora refers to plants

3)Yes, I agree with the statement. Forests provide plant cover to check the flow of water. If forests are removed, then  floods will occur.

4)False.

Endangered animals are those species whose numbers are diminishing at an alarming rate and face an immediate  danger of extinction.

5)If all trees in a forest are cut, it will lead to erosion of soil.

6)Grazing by cattle should be controlled for forest conservation.

7)True.

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10)Wildlife conservation and forest conservation are closely related.

11)False.

A biosphere reserve comprises of three core areas: natural zone, buffer zone and transition zone. These zones are  not present in a tiger reserve.

Explanation:

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5 0
3 years ago
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Surgical destruction of brain tissue is called?
Usimov [2.4K]
Surgical destruction of brain tissue is called lesion. It is <span>a region in an organ or tissue that has suffered damage through injury or disease, such as a wound, ulcer, abscess, tumor, etc. Hope this answers the question. Have a nice day.</span>
3 0
3 years ago
8 Which is a size-dependent property?
castortr0y [4]

Which is a size-dependent property?

A. boiling point

B. conductivity

C. density

D.Mass

I think letter D

Why?

A size dependent property is a physical property that changes when the size of an object changes.Examples of size dependent properties: Length, Width, Height, Volume, Mass.

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5 0
2 years ago
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¿Pueden dos terremotos de igual magnitud provocar daños muy diferentes? ¿Cómo?
nignag [31]

Answer:

Un terremoto con la misma magnitud y profundidad podría causar daños drásticamente diferentes dependiendo de la vulnerabilidad de la exposición. Por ejemplo, un terremoto M6 en California o Japón podría causar muy poco daño debido a las estrictas disposiciones sísmicas de los códigos de construcción. Mientras se encuentre en un país del tercer mundo, el daño podría ser catastrófico y se podrían perder millones de vidas.

Explanation:

¡Espero que esto haya ayudado!

6 0
3 years ago
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