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3 years ago

1. Describe the major sources of air pollution, and list strategies for minimizing their effects.

Geography

1 answer:

bija089 [108]3 years ago

4 0

Answer:

Explanation:

Major sources of air pollution -

1. area sources – the agricultural areas, cities, and fireplaces

2. natural sources – wildfires, wind-blown dust and volcanoes

3. mobile sources – buses , cars , planes, trains, and trucks .

4. stationary sources – such as power plants, oil refineries, industrial facilities, and factories .

Strategies to minimize the air pollution -

1. Use eco-friendly products .

2. Do not smoke inside your home .

3. Save energy

4. Keep air-cleaning houseplants

5. Reduce the air pollution of your automobile

by carpooling .

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Surface currents are warm currents found on the top of ocean water. *<br> True or<br> False

gizmo_the_mogwai [7]

Answer:

True.

Explanation:

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I hope this helps you.

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3 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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