Sodium sulfide, Na, S, reacts with silver nitrate, AgNO3, to
form sodium nitrate, NaNO,
and silver sulfide, Ag, S. Write
the balanced equation for
this reaction.

The energy needs of a human population are not affected by

The earth's polarity has switched many times through history as evidence by what wh the earth clorets he has switched many times throughout history as evidence by what

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses