Science and Health: Chapter 4 - Test (21-30)

21. What is the fatty food substance that hardens or clogs the arteries?
a. margarine
b. cholesterol
c. digested food
d. protein


22. Which of the following statement is NOT true?
a. Stars can be used in finding directions.
b. Stars can be used in predicting weather.
c. Stars can be used in telling distance between planets?
e. stars ca be used in telling time.

23. Which is an example of chemically biodegradable plastic.
a. plastic chair
b. plastic cover
c. plastic capsule
d. plastic bag

24. Why does tsunami occur?
a. it is caused by an earthquake in a plain.
b. It is caused by big typhoon in the land.
c. It is caused by an earthquake under the sea.
d. Both A and C

25. The presence of enlarged lymph node indicates ______________.
a. an infection
b. a recovery from an infection
c. you are in good shape
d. you are very sick

26. An additive that gives red color to meat products.
a. sodium nitrates
b. sodium chloride
c. sodium glutamate
d. citric acid

27. The ability of some animals to give off light is called _____________.
a. incandescent lamp
b. luminescence
c. translucent
d. bioluminescence

28. Most carbon monoxide comes from _______________.
a. leather industries
b. automobile exhaust
c. cigarettes
d. incinerator

29. When the driver says his car is traveling at 80 kms/hour, what is he describing?
a. inertia
b. gravitation
c. velocity
d. acceleration

30. A force that keeps us from sliding when we walk. It also prevents the block from moving when force is applied on it?
a. motion
b. force
c. friction
d. pressure