Q: What surrounds the lungs in a thoracic cavity? Choices: - calcium - single membrane - water - double membrane A:
double membrane

(Question)
Q: Why does the fish odour diminish when you put lemon juice over cooked fish? Choices: - due to oxidation - due to evaporation - due to acidification - due to neutralization A:
(Answer)
due to neutralization

Ques: Q: Pressure and ________ are directly proportional at a constant volume? Choices: - heating - precipitation - speed - temperature A:
Ans: temperature

(Q).
Q: A crater can usually be found on the top of what kind of volcanoes? Choices: - Shield - Dome - Compound - composite A:
(A).
composite

Ques:Q: What is the change in a species over time? Choices: - variation - phenomenon - transformation - evolution A:

Ans:evolution

Q: How many different amino acids make up proteins. Choices: - 14 - 25 - 30 - 20 A:
20