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ozzi
3 years ago
9

18

Biology
1 answer:
disa [49]3 years ago
8 0

Answer:

B

Explanation:

Countershading is a form of concealing coloration in which the upper surfaces of the body are more darkly pigmented than the unilluminated lower areas, giving the body a more uniform darkness and a lack of depth relief.

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Select the correct answer.
riadik2000 [5.3K]

Answer:

Answer is B.

nitrogen (78.10%), oxygen (20.90%) - this combination of gases dominate the Earth’s atmosphere.

Explanation:

The atmosphere of earth is a gaseous layer which surrounds the earth. It  protects the life on earth by absorbing harmful ultraviolet radiation, reducing temperature extremes, maintaining the existence of  liquid water on the earth's surface and warming the surface. The atmosphere consists of many gases including some pollutants and greenhouse gases. Nitrogen is the gas present in the atmosphere most abundantly while Oxygen and Argon take the second and third place. Atmosphere contains approximately 78% of nitrogen , 21% of oxygen and 0.9% of argon. Gases like carbon dioxide, nitrous oxides, methane, ozone and the water vapor constitutes the rest of the atmosphere. Many small particles called aerosols are also there which include dust, spores, pollen, volcanic ash, smoke etc. There are five layers of atmosphere. Troposphere (0 to 12 km) where we live is the lowest layer of earth's atmosphere ,which is closest to the earth's surface contains half of the atmosphere. Here most clouds are found and almost all weather occurs. Stratosphere (12 to 50 km) is the second layer where jet aircraft and weather balloons fly. It contains the ozone layer that absorbs harmful radiation from the sun.  Mesosphere (50 to 80 km) is the third highest layer and the coldest part of the atmosphere where most meteors burn up upon entering in to the atmosphere. The fourth layer is thermosphere (80 to 700 km) where the International Space Station orbits earth and the space shuttles flew. Exosphere (700 to 10,000 km) is the outermost layer where the atmosphere merges into outer space. Most of the satellites orbiting earth are found here.

8 0
3 years ago
Read 2 more answers
What landscape region separates New York State from Massachusetts?
Ne4ueva [31]

Answer:

New York is bordered by Canada and Lake Ontario in the north; Pennsylvania, New Jersey, and the Atlantic Ocean in the south; Lake Erie in the west; and Connecticut, Massachusetts, and Vermont in the east. The St. Lawrence-Champlain Lowland runs along the edge of the Adirondack Mountains and the Canadian border.

Explanation:

3 0
2 years ago
What does the law of conservation of energy state?
vovangra [49]

Answer:

Energy cannot be created nor destroyed.

So...

OB

Explanation:

3 0
2 years ago
Disruption of which organelle, would cause the most change in the function of<br> the cell?
Allisa [31]

Answer:

Is it a true or false question cuz it would be true

8 0
3 years ago
What is a possible benefit of studying plants in the rain forest?
hodyreva [135]

Answer:

The plants may make toxins for human consumption.

Explanation:

8 0
3 years ago
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