Answer:
Continental drift was first proposed by a scientist named Alfred Wegener. He theorized that the continents were once one large landmass that drifted apart very slowly over a long time.
Explanation:
Alfred Wegener was the scientist that came up with the idea that Earth's continents are not static but that they move slowly. While he came up to a lot of resistance and ridicule when he first proposed this, he did not give up, instead, he continued in his mission to prove his theory and managed to find numerous pieces of evidence to support it.
Some of the evidence that Wegener found were the mathcing continental margins, matching mountain chains in different continents, fossils, mid-ocean ridges, etc. When he managed to come out with all of the evidence the scientists that previously thought that he is crazy were shocked and saw that they were the ones that were wrong all the time. Quickly, this theory was accepted, and more and more evidence was obtained to support it, so the world finally knew that the continents are moving slowly, and that they were one big landmass in the distant past and that there are high chances that something like that will happen in the future as well.
I think the answer is the density of the soil.
Hope this helps
If not, am sorry
Answer: D. both A and B
Explanation:
Earth is the only planet that is capable of supporting life as we know it due to the presence of temperature, oxygen, an atmosphere and energy.
All the above contribute in the following ways;
- Atmosphere - The atmosphere is sort of like a protective barrier around earth. It destroys a lot of foreign objects that fall on earth and traps the sun's rays such that we keep us adequately warm. It also contains both oxygen and carbon dioxide which living things rely on.
- Energy - The presence of energy sources on Earth enables us to be able to survive. Energy sources like fire, water, and solar enable us to do things such as cooking and electricity generation, that ensure our survival.
- Nutrients - The nutrients available on Earth ensure that living things can grow and survive.
- Temperature - A very important factor, Earth has the right amount of temperature necessary for the proliferation of life. It is not too cold that living things are unable to metabolize food and freeze and is not too hot that life cannot survive.
