The overall specific gravity of the earth is much higher than the specific gravity of crustal rocks which means the earth is about twice as heavy as the rocks on the surface would suggest. Iron meteorites are thought to have the same composition as the average earth, and the meteorites contain a lot more iron than the Earth's surface rocks.
The quantity of natural resources in Africa led European nations to colonize Africa.
Answer: Option 3
<u>Explanation:</u>
Africa is well known for its natural resources. African countries’ soil was rich in minerals. Also, some of the African Countries are abundant with Oil resources.
The Europeans Colonized Africa as they can trade that wide variety of mineral resources and all the organic products. That includes Diamonds to rocks that contained uranium, zinc, tungsten, etc.. Also, tea, coffee, sugar, and tobacco were 90% percent of the exports from Africa.
A. For the south china sea! hope this helps!!
Answer: it gives water
Drinking, cooking, electricity or hydroelectricity
We can use it to grow food or use it in hydroponics
We can filter it into drinking water
