Ques: Q: What force holds together both types of star clusters? Choices: - weight - magnetism - inertia - gravity A:
Ans: gravity

Ques: Q: What occurs when force is applied to a moving object? Choices: - stimulation - inertia - transmission - acceleration A:
Ans: acceleration

Ques: Q: What is the most complex organ in the human body? Choices: - heart - liver - muscular - brain A:
Ans: brain

Ques: Q: During strenuous exercise our muscles perform what kind of fermentation? Choices: - nitric acid - residual acid - excessive acid - lactic acid A:
Ans:
lactic acid