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butalik [34]
4 years ago
8

What is the main cause of an aurora

Biology
1 answer:
Phoenix [80]4 years ago
7 0

When charged particles from the sun strike atoms in Earth's atmosphere, they causeelectrons in the atoms to move to a higher-energy state. When the electrons drop back to a lower energy state, they release a photon: light. This process creates the beautiful aurora, or northern lights

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"Briefly DISCUSS four (4) instances in which taking any vitamin and mineral supplements are unnecessary, or even harmful. Do NOT
USPshnik [31]

Answer  and explanation

There are instances where taking any vitamin or mineral supplements will be unnecessary or even harmful.

Example

a) For children who are already drinking Fluoridated it will be unnecessary to give them Fluoride supplements

b) It is unnecessary to take supplements because you believe it can cure diseases.  If you have a disease one should see a doctor

c) It can be harmful to take supplements that increase energy levels inthe body.  It can lead to altered heart rhythm and eventually death

d)A doctor should be consulted before taking nutrient supplements such as Vitamin A. Most have a toxicity level and it is not necessary to take them unless there is deficiencies.

3 0
3 years ago
Which of the following would not be facilitated diffusion?
marusya05 [52]

Answer:

A. A water molecule passes through a semi permeable membrane

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Facilitated diffusion is the diffusion of a molecule without any assistance from a protein or protein channel.

In facilitated diffusion, a molecule will diffuse by itself through a semi permeable membrane, such as the cell membrane.

Answer choices B, C, and D are incorrect because they are all examples of facilitated diffusion. The molecules required assistance from a protein.

Answer choice A is correct because the water molecule was able to pass through by itself.

So, the correct answer is A. A water molecule passes through a semi permeable membrane

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