Which fossil fuel releases the least amount of car dioxide into the air in a year a. Gas b. Coal c. Oil d. Nuclear energy

What is the net electrical charge of the nucleus of an atom?

What are some possible factors that must remain constant during testing

Which molecules are involved in protein synthesis? A) Transfer RNA, introns, and mutagens B) messenger RNA, introns, and Ribosomal RNA C) Ribosomal RNA, transfer RNA, and mutagens D) messenger RNA, Ribosomal RNA and transfer RNA

The least desirable method of restraint for a cat is

Which statements accurately describe matter? Check all that apply. Only living things are made up of matter. Matter is made up of tiny particles called atoms. Atoms were discovered in the twenty-first century. Atoms cannot be divided.

two population of finches live on separate islands and rarely move from one island to another this is an example of

In humans, black hair (B) is dominant over red hair (b) and having six fingers (F) is dominant over having five fingers (f). Sally has black hair and five fingers. Her father has red hair. Sally marries Bill who has red hair and six fingers.

Which group of elements shares characteristics with both metals and nonmetals?

Where and how does ammonification / nitrification take place

Jill has a beaker. In this beaker there are two layers. The top layer is transparent with a yellow tint to it, and the bottom layer is transparent and clear. Jill decides that the bottom layer is probably water.