Q: When an atom gains or loses an electron it becames an? Choices: - electron - photon - neutron - ion A:
ion

(Question)
Q: What is the term for the force applied to a wheel and axle? Choices: - velocity force - momentum - output force - input force A:
(Answer)
input force

Ques: Q: Kangaroos, koala and opossums are part of what group? Choices: - primates - cephalopods - monotremes - marsupials A:
Ans: marsupials

(Q).
Q: What are the three most common elements in the air we breathe? Choices: - oxygen, nitrogen, H20 - nitrogen, argon, hydrogen - argon, oxygen, hydrogen - nitrogen, oxygen and argon A:
(A).
nitrogen, oxygen and argon

Ques:Q: What temperature scale is obtained by adding 273 degrees from the corresponding celsius temperature? Choices: - whittle scale - seismic scale - ph scale - kelvin scale A:

Ans:kelvin scale

Question: Q: As adults, amphibians are completely _______, meaning they feed on other animals. Choices: - herbivorous - monogamous - omnivorous - carnivorous A:
Answer:
carnivorous