why isnt this technology used in coal plants

What do wind turbines, hydroelectric dams, and ethanol plants have in common? A. All produce electrical current without pollution. B. All use generators to produce electrical current. C.

Which of the following is the basis for arranging the elements in the modern periodic table? A) alphabetical order B) masses of atoms C) number of protons D) date of discovery

The blending of a wave as it passes at an angle from one medium to another

In which approximate direction is the warm front in the upper left of the weather map moving? A. east B. west C. south

An electron in a region where there is an electric field experiences a force of magnitude 3.8 10-16 n. what is the magnitude of the electric field at the location of the electron?

Which solution has the greatest number of hydroxide ions? baking soda, pH = 9 milk, pH = 6 tomato juice, pH = 3.5 vinegar, pH = 2A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent.

Part of the suns energy that reaches the Earths surface is absorbed by land and water as heat. The earths surface then releases heat back into the atmosphere Which of the following is true about this solar energy that is absorbed and released by

When Emeka was first training his dog, Smooches, to heel he would give Smooches a treat when she stayed close during walks. Now Smooches stays right by Emeka's side, even when she is not on her leash. In this case, a.

What must vectors have in common in order to be added?

After one species disappears the other species in the ecosystem ...