Four students wrote down their descriptions of burning. Amanda: Buming is a chemical change that happens to food like strawberries or apples. Burning happens slower when there is more heat. Krista: Burning is a type of chemical change using fire and heat that produces new substances Buming things like wood or bread changes their color and odo Bernadette: Buming is a type of physical change that changes the color and odor of objects using fire and heat. Laura: Burning is a chemical change where objects change color, odor, and appearance. The lower the heat the faster the chemical change. Which student had the best description of burning? Amanda Krista Bemadette Laura​

Hey Krista: Burning is a type of chemical change using fire and heat that produces new substances "Buming"* things like wood or bread changes their color and odor

This is the best discription because it describes what things can burn and what happens to them.

*i don't know what "buming" means but i think you mean burning, lol.

so here is the information for current research:

-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

we need to know the time interval during which the force acts. impulse of force = momentum change