What is an element?

A.

a material that is shiny and usually hard and strong

B.

a substance made of just one kind of atom that cannot be broken down into something simpler

C.

a substance made up of hydrogen and one other kind of atom

D.

a substance made of just one kind of molecule that cannot be broken down into something simpler

B) a substance made of just one kind of atom that cannot be broken down into something simpler

Explanation:

Elements are what you find on the periodic table of elements.

Take oxygen, for example. You can have one or multiple atoms, but if they are all oxygen atoms it's an element.

hurricanes form in warm water

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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