Q: What is most of earth's surface covered with? Choices: - insects - sand - silicon - water A:
water

(Question)
Q: What do you call the point at which the entire weight of a body may be considered to be concentrated? Choices: - center of earth - complex of gravity - direction of gravity - center of gravity A:
(Answer)
center of gravity

Ques: Q: What color is the brittle metalloid tallurium? Choices: - brownish black - purplish blue - yellowish green - silvery white A:
Ans: silvery white

(Q).
Q: In many species, display behaviors, like a gorilla beating on its chest, are used instead of actual physical attacks to show what? Choices: - dominance - friction - stress - aggression A:
(A).
aggression

Ques:Q: Who discovered that the andromeda nebula is over 2 million light years away Choices: - richter hubble - smith hubble - mills hubble - edwin hubble A:

Ans:edwin hubble

Q: What is the standard unit for mass? Choices: - ounce - meter - pound - kilogram A:
kilogram