Today, there are about how many people living on the earth?
3.4 billion
7.5 billion
9.0 billion
6.6 billion

What conclusión can be drawn about the middle east

Which of the following is not a place where hydrogen can be found on earth? a. natural gas well b. atmosphere c. water d. mine

Which area on the map would be most likely to have the most oil exploration in since the start of the 21st century? a) b) c) d) plz me