Which of the following countries is not part of central america?

a) el salvador

b) argentina

c) costa rica

Explain why components that are naturally found in air can be considered air pollutants.

In which area will soil formation be greatest? a a steep slope in a warm,b wet climate a flat area in a warm,c wet climate a north-facing area on a steep slope a flat area in a cold, d wet climate description

What type of aid does nigeria receive? short term, tied, voluntary, bilateral, multilateral or long-term?