Q: Like mammals and birds, and unlike other reptiles, crocodiles have how many chambers in their heart? Choices: - one - six - two - four A:
four

(Question)
Q: What kinds of rocks can change and become new types of rocks? Choices: - igneous rocks - metamorphic rocks - sedimentary rocks - any types of rocks A:
(Answer)
any types of rocks

Ques: Q: Mercury is small, rocky and covered with what objects? Choices: - rivers - volcanoes - diamonds - craters A:
Ans: craters

(Q).
Q: What kind of surface would cause diffusion when light is reflected off of it? Choices: - hot surfaces - cold surfaces - smooth surfaces - rough surfaces A:
(A).
rough surfaces

Ques:Q: What make distant objects appear both nearer and larger? Choices: - astrolabes - mirrors - lasers - telescopes A:

Ans:telescopes

Q: The group 18 gases that have 8 valence electrons are referred to as what type of gases? Choices: - novel - important - metal - noble A:
noble