Q: What carries warm or cold water throughout the world's oceans? Choices: - gravity - pipes - earth rotation - ocean currents A:
ocean currents

(Question)
Q: What are formed by atoms gaining electrons? Choices: - ions - cations - oxides - anions A:
(Answer)
anions

Ques: Q: What is the name for a matter that has a fixed volume and a fixed shape? Choices: - gas - stable - liquid - solid A:
Ans: solid

(Q).
Q: What is a mixture of potassium nitrate, sulfur, and charcoal? Choices: - gasoline - cyanide - TNT - gunpowder A:
(A).
gunpowder

Ques:Q: The amount of kinetic energy in a moving object depends directly on what two factors? Choices: - revolution and velocity - inertia and momentum - gravity and weight - mass and velocity A:

Ans:mass and velocity

Ques:Q: Redox reactions can always be recognized by a change in what number of two of the atoms in the reaction? Choices: - fermentation - oxygen - precipitation - oxidation A:

Ans:
oxidation