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3 years ago

I need help fast plz:)

Geography

1 answer:

Vlad1618 [11]3 years ago

6 0

Answer:

Paleoclimatologists use a variety of methods from Earth and life sciences to obtain data previously preserved within rocks, sediments, boreholes, ice sheets, tree rings, corals, shells, and microfossils. Combined with techniques to date the proxies, these paleoclimate records are used to determine the past states of Earth's atmosphere.

Explanation: The study of ancient climates helps us understanding how the climate system works--and how it might change in the future. Geologic records going back millions of years show that natural patterns, like shifts in Earth's orbit, can steer dramatic changes.

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Ahat [919]

Answer:

a. 9:00 pm to midnight.

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Proving Vertical Angles Are Congruent

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The diagram shows that ∠2 and ∠4 are the vertical angles.

<h3>What are vertical angles?</h3>

Vertical angles are the angles that are opposite of each other when two lines cross.

The statements are:

1. < 2 & < 4 are vert. angles

2. Lines M & N intersect at P

3. < 2 & < 3 are a linear pair

4. m < 2 + m < 3 = 180

5. <3 and < 4 are a linear pair

6. m < 3 + m <4 =180

7. m < 2 + m < 3 = m < 3 + m < 4

8. m < 2 = m < 4

9. < 2 =~ <4

Here are the reasons:

1. Given

2. Def of vertical angles.

3. Def if. Linear pair

4. Angle addition postulate

5. Def of a linear pair

6. Angle addition postulate

7. Substitution property

8. Subtraction property

9. Def of =~ angles.

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