Answer: The Precambrian Era comprises all of geologic time prior to 600 million years ago.
Explanation: The Precambrian was originally defined as the era that existed before the emergence of life in the Cambrian Period. It is known that life on Earth began by the early Archean and that fossilized organisms became more and more abundant throughout Precambrian time.
Answer:
I am confused on what this is supposed to be, but if you are talking about chemicals, then your answer is sulfur.
Hoped this is what you're looking for. Sorry if it isn't. I would love to help, but it needs to be more specific.
Answer:
у моей задницы много, но щеки
Explanation:
Answer:
This problem should be worked on by the most developed countries as they have the biggest capacity, and after they get on the right way to help the developing countries and show them the way as to how to do it as well.
Explanation:
The carbon emissions that humanity is releasing into the atmosphere can not be attributed to only a few countries, but to most of the countries in the world. All countries that have some kind of industry contribute to the problem, though some countries much more than others.
In order for carbon emissions to decrease there should be a global collaboration. The most developed countries because they have the most finances and resources should lead the way and come up with solutions, and once they do this to help the developing countries with it so that they can also stop the carbon emissions.
Many countries are already on the right path, namely Germany, the Netherlands, France, the Scandinavian countries. The two biggest economies though, the US and China don't even want to hear about this because of their race for economic dominance, so it seems that reasoning the governments of these two countries will be the most important step for global turnaround.
I would put option A.
The question says how the surface MIGHT change over a long period of time so that's why I wouldn't say option C, and that's how canyons are formed if I'm not mistaken.
I hope this helps. My apologies if I'm wrong.