Q: Co 2 , h 2 o, methane, o 3 , nitrous oxides (no and no 2 ), and chlorofluorocarbons (cfcs) are known as what type of gases? Choices: - chemical gases - hydrogen gases - carbonate gases - greenhouse gases A:
greenhouse gases

(Question)
Q: What is the term of a phase change if solid water has it's average kinetic energy increased to change it to liquid water? Choices: - boiling - freezing - evaporation - melting A:
(Answer)
melting

Ques: Q: Alkenes react with what to form dihalides? Choices: - antioxidants - amines - oxides - halogens A:
Ans: halogens

(Q).
Q: In animal cells, what arises from the centrosomes and includes spindle microtubules and asters? Choices: - Golgi apparatus - ribosomes - DNA helix - the spindle A:
(A).
the spindle

Ques:Q: Where does the krebs cycle take place? Choices: - in the nitrogen - in the ozone - in the beam - in the matrix A:

Ans:in the matrix

Ques: Q: Electrons in the "outer shell" are also known as what kind of electrons? Choices: - charged - intermediate - static - valence A:
Ans:
valence