What advantage does nuclear power have over fossil fuels?

A. It is less expensive

B. It has less risk of a dangerous explosion

C. It is available to poor countries

D. It has no negative byproducts

What happens in general to the air pressure as altitude increases? and why?

Which parts of the heart prevent backflow of blood in the circulatory system and allow the heart to work like a pump? A.) atria B.) valves C.) ventricles

Which of the following is NOT true about chlorine? A. It is not reactive. B. It combines with sodium to form table salt. C. It is a poisonous, greenish gas. D. It was used in battles in World War I.

Occasionally, raw sewage is dumped directly into a lake or river. The major effect that this has on the water environment is that the: A.) oxygen content of the water drops B.) aquatic plant growth decreases C.) water becomes poisoned D.

If you increase the number of water molecules in the extracellular fluid, will the membrane move to the right or the left in the Membrane View? Explain your reasoning in terms of pressure.

The electrons that chlorophyll loses to electron transport chain are replenished by

Why using insect repellent reduces your risk of developing Lyme disease?

Which monomer serves as the building block of glycogen, a polymer made up of many glucose molecules?

Where is the Rubico enzyme active

A cell that contains enzymes, dna, ribosomes, a cell membrane, and chloroplasts could be a cell from