A(n) atmosphere is formed by the presence of water vapor, hydrogen gas, methane, and ammonia and a lack of oxygen.

Which statements about the enhanced for loop are true for arrays of primitive data?

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons