Context: what is impeachment? How does it work? History?

Current: explain Trump impeachment? What happened?

Synthesis: what ideal/principle of our constitution does this relate to? Explain?

where's the

islam spread slowly through much of africa through trade and preaching.

the lines on a surface map are called isobars. isobars are lines of constant pressure which are measured in units called millibars. the numbers indicate the amount of air pressure, in millibars, that each line represents.