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Zolol [24]
3 years ago
8

What are auroras made of?

Biology
1 answer:
bagirrra123 [75]3 years ago
8 0

Auroras are produced when the magnetosphere is sufficiently disturbed by the solar wind that the trajectories of charged particles in both solar wind and magnetospheric plasma, mainly in the form of electrons and protons, precipitate them into the upper atmosphere (thermosphere/exosphere) due to Earth's magnetic field, where their energy is lost.

The resulting ionization and excitation of atmospheric constituents emits light of varying color and complexity. The form of the aurora, occurring within bands around both polar regions, is also dependent on the amount of acceleration imparted to the precipitating particles. Precipitating protons generally produce optical emissions as incident hydrogen atoms after gaining electrons from the atmosphere. Proton auroras are usually observed at lower latitudes.

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The mammary glands enlargement during pregnancy primarily as a consequence of what hormonal process?
Masteriza [31]

Answer:

c-hormonal hyperplasia

Explanation:

When there is increase in the number  of cells and tissues that appear normal under the  microscope,Hyperplasia is said to occur.If these occur in cells of an endocrine gland of a system,then it is refers to as hormonal hyperplasia.

Therefore during pregnancy,the proliferation of the glandular epithelium  in a pregnant woman (and at puberty in a females are examples of hormonal hyperlasia.

Its possible causes are;

a  surge in local production s of growth factors,

In the numbers of growth factors receptors on the  cells receptive to the factors,

and   due to activation of   specific intrancellular signalling pathways.

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3 years ago
Why do hens scream in the morning ?
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<h2>♨ANSWER♥</h2>

Chickens are vocal creatures, and if you're a chicken keeper, you might notice that your flock is particularly noisy in the morning. Chickens can make noise in the morning for a few reasons, including; they want to get out of the coop for food and water, they've laid an egg, or because they're vocalizing to each other.

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4 0
2 years ago
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Write a short paragraph on the hearing and seeing capacity of a horse​
prisoha [69]

Answer

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8 0
2 years ago
What is mostly likely elevation of the mountain below
solniwko [45]
From the contour line that is a combination of two line segments that connect but do not intersect, 500 and 750 represent elevation on the topographic map. There are 5 contour lines in between the given elevations 500 and 750, therefore, the contour interval is 50. Since the peak of the mountain is 2 contour lines from 750, the elevation of the mountain is 850. Hence, the answer is 871 meters.
3 0
3 years ago
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The Cells in your body get energy from the foods you eat. However, your cells must use energy to get this energy. Why?
IrinaK [193]
Because so you keep healthy
5 0
3 years ago
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