Q: What is used to describe gas concentrations of a solution? Choices: - fixation fractions - mesh fractions - atom fractions - mole fractions A:
mole fractions

(Question)
Q: The innermost layer of the sun is known as what? Choices: - photosphere - surface - convective zone - core A:
(Answer)
core

Ques: Q: Do waves move faster when particles are close to each other or far away? Choices: - unaffected - far away - open - close A:
Ans: close

(Q).
Q: What organ system is comprised of your heart, blood, and blood vessels all working together? Choices: - thoraxic system - nervous system - digestive system - cardiovascular system A:
(A).
cardiovascular system

Ques:Q: Are bones considered living or dead tissues? Choices: - decaying - decomposing - dead - living A:

Ans:living

Q: Which temperatures cause particles of reactants to have more energy? Choices: - non-existant - reducing - lower - higher A:
higher