Which is an example of radiation? check all that apply. troy’s hand is burned when he touches hot wax. earth is heated by energy from the sun. a hot dog is held over a fire and gets warm. soup is heated in a microwave. water is boiled in a pot on a stove burner.

The choices

Earth is heated by energy from the Sun.

A hot dog is held over a fire and gets warm.

Soup is heated in a microwave

are correct.

Explanation:

Let us consider each of the choices one by one.

In this case the energy is transferred through conduction not radiation, therefore this is not a correct choice.

Energy is transferred from the sun to the earth only through radiation, therefore this choice is correct.

Air is too poor a conductor to transfer heat through conduction, and if the hot-dog is held directly above the fire, heat transfer through convection is possible, but also energy is transferred through radiation. Therefore this choice also counts as correct.

Microwave radiation is used to warm the soup. This choice is correct.

In this case energy is transferred from the burner to the water though conduction, and from the base of the water and upwards through convection. No energy transfer through radiation is possible here, therefore this choice is not correct.

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-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water

i would like to make dinner for my mom, dad, and sister