Q: Many adolescents experience frequent mood swings. name one of the causes for this. Choices: - maturing nervous system - psychological changes - growing hormones - surging hormones A:
surging hormones

(Question)
Q: What processes involve a transfer of electrons between the wire and the solution? Choices: - radioactive - magnetic - thermal - electrochemical A:
(Answer)
electrochemical

Ques: Q: The periodic table is an arrangement of the elements in order of increasing what? Choices: - gravity numbers - metallic numbers - negative numbers - atomic numbers A:
Ans: atomic numbers

(Q).
Q: What the scientific concept stating that when looking at two competing theories, the one with fewer assumptions should be chosen? Choices: - law of thermodynamics - law of simplicity - law of averages - law of parsimony A:
(A).
law of parsimony

Ques:Q: The two ovaries are small, oval organs on either side of what part of the body? Choices: - lungs - heart - pancreas - uterus A:

Ans:uterus

Q: The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity. the period is completely independent of other factors, such as this? Choices: - size - rate - speed - mass A:
mass