Which energy resource disturbs the land the most, producing a lot of pollution and requiring large smokestacks to remove much of it?

coal

fuel cells

hydroelectric

natural gas

What is the only vein in the body that carries oxygen rich blood

Which electromagnet would have the most strength? A) An electromagnet with 5 coils. B) An electromagnet with 10 coils. C) An electromagnet with 15 coils. D) An electromagnet with 20 coils.

What is each horizontal row of elements in the periodic table called?

Give at least one example from industry where a mixture must be separated in order to obtain the materials that are useful to society.

Calculate the mass of the elements in 30.5 grams of aluminum sulfite

The definition of volume is? a) width*height b) the space occupied by mass c) the space occupied by a liquid d) the mass of liquid required to fill a container

What is the empirical formula of a substance that is 53.5% C, 15.5% H, 31.1% N?

What is the lowest layer of the atmosphere and what is its highest altitude?

An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?

A compound of material formed by a chemical is known as?