What did Charles Darwin mean when he started that sone organisms were " more fit " than other organisms?

Which of the following lakes is not found in africa?

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

Many feel that the u. s. should not give money to the world bank to aid people in other countries. true or false