Some light energy can be seen and some cannot be seen with the unaided eye.

There is one form of light energy that is very good at exciting water molecules, but it is invisible to human eyes. If enough of this type of light is shot at water, the water will boil. This application of light energy is so useful that most American households have a device that uses it to cook food.

What type of light energy is this?
A.
heat energy
B.
natural gas energy
C.
microwave energy
D.
electric energy

C. Microwaves

Explanation:

Microwaves are a type of light energy.

Microwaves cook food by exciting the water molecules inside of the food. In most cases, this is a very efficient way to cook. Since making this type of light is relatively cheap and easy, most American households have a microwave oven in them.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.