Complete the following sentence. If a grower's greenhouse has been successful in the management of challenging species that often defeat
professional growers, this can lead to specialization in producing
for other
growers.

*its “plugs”*

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.

Are the earth's ocean floor and continents the same age geologically? why or why not?

What percentage of light hits earth's surface directly?