3 years ago

Compare Earth's early atmosphere with its present one.

1 answer:

3 0

Hello Again,

<span>Earth's early atmosphere was composed of many gases that would be poisonous to us. As forms of life evolved and began to photosynthesize, oxygen was produced. Once animals adapted to using oxygen, they began to give off carbon dioxide, balancing the production of oxygen

Have a nice day!</span>

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Why did European countries gather at the Berlin Conference?

miv72 [106K]

Answer:

I have same question no very good inglish

Explanation:

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2 years ago

Given that a circle has a radius of 4inches and then a radius of 12inches after it has expanded. Given that the formula for a ci

nlexa [21]

Answer:

Rate of change = 3π or 9.43

Explanation:

Given the following data;

Initial radius, R1 = 4 inches

Final radius, R2 = 12 inches

To find the rate of change;

First of all, we would determine the area of the circle.

Mathematically, the area of a circle is given by the formula;

Area of circle = πr²

For initial radius, R1;

Area of circle, A1 = πR1²

Area of circle, A1 = 4π square inches

For final radius, R2;

Area of circle, A2 = πR2²

Area of circle, A2 = 12π square inches

Now, we can find the rate of change;

Rate of change = A2/A1

Rate of change = 12π/4π

Rate of change = 3π (in terms of pie).

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3 years ago

Which of the following is not one of the five main types of biomes

d1i1m1o1n [39]

I'm pretty sure its D

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4 years ago

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What is a rock that forms when existing rock is changed beneath earth’s surface called?.

hodyreva [135]

Answer:

Metamorphic rocks is your answer

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2 years ago

You have a standard deck of 52 cards. You pick one card from the deck and then, without putting the first card back, pick a seco

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The first one is 4 in 52, the second is 3 in 51.
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3 years ago

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