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Tomtit [17]
3 years ago
10

NEED HELP ASAP

Biology
2 answers:
IrinaVladis [17]3 years ago
7 0

There are a couple reasons the ice is important to polar bears, but given the choices you have the correct one would be:

A. The polar bears can’t out swim the seals, so they sit quietly on an ice platform and attack the seals when they come  up for air.

Savatey [412]3 years ago
7 0
Hi! The correct answer is B. We know this because polar bears do not migrate to warmer areas, nor do they use ice to take a “nice nap in the sunshine”. Although A is technically correct, they can still get food without seals. The only rational answer is B; I mean, they would starve if they didn’t get fat during the winter!
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sodium (NA) and water (H2O undergo a chemical reaction that produces sodium hydroxide (NaOH) and hydrogen gas (H2). Which equati
natita [175]

Answer:

There are no options in this question, however, the equation can be provided. The answer is:

2Na + 2H2O --> 2NaOH + H2

Explanation:

This question is deacribing the equation between sodium (Na) and water (H2O) to produce sodium hydroxide (NaOH) and hydrogen gas (H2). The equation originally is as follows:

Na + H2O --> NaOH + H2

From the above equation, one would notice that it is not balanced because the number of atoms of each element is not the same on both sides of the equation. Hence, to balance the equation, a coefficient is used to make sure the same number of atoms of each element are on both sides.

We have;

2Na + 2H2O --> 2NaOH + H2

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When a cell prepares to divide, the chromatin condenses into rod-shaped structures called?
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