Answer:
Chlorofluorocarbons from the air conditioners !
Explanation:
Coalescence
Coalescing means the pulling together of separate masses to become one bigger mass.
Explanation:
As water vapor rises into the upper cooler atmosphere, it cools and condenses into moisture droplets. These tiny droplets collide with each other, due to gravity, vertical motions and wind, to form larger droplets. This is even enhanced if there are seed particles in the air that allows the formation of larger droplets. When the droplets get large enough for gravity to act on them, they fall as precipitation.
If there are strong updrafts, the cloud could carry even larger droplets before precipitation which is what happens in the case of thunderstorms.
Learn More:
For more on cloud formation check out;
brainly.com/question/11447790
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The answer to your question is C ! :)
Answer:
Human activity - Produces greenhouse gasses.
Greenhouse gasses - Cause atmosphere to trap more heat.
Sun's output - Can vary.
Ice age - Peaked 20,000 years ago.
Explanation:
Human activity includes the usage of fossil fuels on a very large scale, and by using them we release huge amounts of greenhouse gasses into the atmosphere.
The greenhouse gasses have the ability to trap the heat that is reflected from the surface of the planet, thus keeping more of it in the atmosphere and causing global temperature rise.
The sun is technically a star, thus an object that produces energy and light, and like every star, it has variations in its activity in accordance with the processes going on on it.
There have been numerous ice ages through the geological past, and the last one of them ended only around 10,000 years ago, with its peak being just 20,000 years ago.