What do heating systems, cooling systems, and heat engines have in common?

They deactivate thermal energy.
They create thermal energy.
They destroy thermal energy.
They transfer thermal energy.

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

Types of scientific inquiry that biologist engage in that cannot be completely controlled

Some of the money that people deposit into a bank eventually becomes a interjection into the economy when the bank