The most abundant elements found in the Earth's rocks (such as iron, oxygen, and silicon) were formed .

These factors threaten north americas ecosystems

Which is not an example of a  cultural  bond found in a nation-state? a. a holiday traditionb. a common religionc. a favorite placed. a shared history

Can someone me choose a broad topic and area of focus i am really doing this as a tally to see which one most people pick ok water pollution global warming endangered species atmosphere for the !