An ecosystem is a network of that depend on one another and their environment for survival.

Compared with the land in the highlands, the lowlands region of england a) rockier and more difficult for farmingb) the center of business and industryc)richer in coal reservesd)covered by more fertile farmland d) covered by more fertile farmland

Which two following best identify the central themes of this speech in the passage the man in the arena

Which type of map gives the most information about what lies below the surface terrain ?