Q: What are living echinoderms divided into five of? Choices: - classifications - species - sexes - clades A:
clades

(Question)
Q: Is the heat of reaction positive or negative for an endothermic reaction? Choices: - Neither - Both - Negative - positive A:
(Answer)
positive

Ques: Q: The extent to which a substance may be dissolved in water or another solvent is known as what? Choices: - humidity - flexibility - turbidity - solubility A:
Ans: solubility

(Q).
Q: Fossil fuels are made out of what two objects? Choices: - gases and animals - plants and water - soil and animals - plants and animals A:
(A).
plants and animals

Ques:Q: What part of a person with myopia is longer than normal? Choices: - arm - leg - neck - eye A:

Ans:eye

Ques:Q: Do metals tend to gain electrons or lose electrons in chemical reactions? Choices: - develop electrons - same number of electrons - gain electrons - lose electrons A:

Ans:
lose electrons