Well, if you mean layers of the earth than the 1st one would be crust the second would be the mantle and the third would be the outer core.
Explanation: Hello, the reason was because the titanic hit an iceberg
The correct answer is the last one: waxing crescent.
Answer:Causes of Global warming
Explanation:
Where are the extra Green house gases coming from?
Most scientist think that human activities such as burning fossil fuels, using cars and other vehicles ,and clearing forest have increased the amount of carbon dioxide in the atmosphere. There are green house gases in our atmosphere,e.g. water vapor , carbon dioxide , methane nitro us dioxide and ozone.
They absorb heat from Sun rays and radiate in all directions, which warm's the Earth.The Earth could become too hot and this causes climate change which has a lot of effects on Earth. Earth's dry regions will become more drier and wet regions will become more wetter e.g.