Q: What is the upward force exerted by fluids when any object, such as a boat, is placed in it? Choices: - human force - atomic force - impetuous force - bouyant force A:
bouyant force

(Question)
Q: Atoms that have gained electrons and become negatively charged are called what? Choices: - negative atoms - cations - anions - negative ions A:
(Answer)
negative ions

Ques: Q: Which part of the brain secretes hormones that tell the pituitary gland either to secrete or to stop secreting its hormones? Choices: - cerebrum - hippocampus - thalamus - hypothalamus A:
Ans: hypothalamus

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

Ques:Q: What do you call the electrons in the outermost energy level of an atom? Choices: - Inner electrons - shell electrons - Proper electrons - valence electrons A:

Ans:valence electrons

Q: What is the term for a system maintaining a stable internal environment in a changeable external environment? Choices: - Pregnant - fetus - hypothesis - homeostasis A:
homeostasis