At the center of the Earth is the core, which has two parts. The solid, inner core of iron has a radius of about 760 miles (about 1,220 km), according to NASA. It is surrounded by a liquid, outer core composed of a nickel-iron alloy. The outer core is about 1,355 miles (2,180 km) thick.
Answer: A!
Explanation: i took the test and got it correct
so pretty sure its A! :)
edit: im not 100% sure!
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.
Answer:
option B
Explanation:
The correct answer is option B
The earth system which includes oceans, rivers, lakes, and glaciers is known as Hydrosphere.
The troposphere is the first layer of atmosphere it extends up to 6 to 7 km.
The atmosphere is the layer of gases present on the earth. The atmosphere is divided into five layers the first layer of atmosphere is the troposphere and the last layer is Exosphere.
The biosphere is the area of the planet where the organism lives, it includes ground, air, water, etc. an example of the biosphere is Earth.
