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Material safety data sheets are used to give the information about a solvent. The excerpt below is part of an MSDS.

Question illustration
A
fire safety
B
disposal safety
C
chemical use safety
D
glassware safety
22
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Which is caused by distracted drivers and may most likely be reduced by brain-powered cars?

A
fuel consumption
B
busy highways
C
traffic accidents
D
harmful emissions
23

Which is the SI base unit for mass?

A
meter
B
pound
C
gram
D
foot
24

Read the passage about the health risks of single-load liquid laundry packets.These packets are filled with concentrated, toxic chemicals. A 7-month-old in Florida died from swallowing the soap. Several soap and detergent companies are conducting studies to address these safety concerns; they want to reduce toxicity and to make the packets look less like candy. The U.S. Consumer Product Safety Commission (CPSC) is also performing studies to build more safety into these products.

A
The CPSC is the only organization that can test the safety of soaps and detergents.
B
Studies conducted by any company that benefits financially are considered unreliable.
C
Studies performed by the CPSC give reliability to the results of improved safety obtained by each soap company.
D
Tests performed by the CPSC follow established scientific methods, but those performed by soap companies do not.
25

Which characteristic should a good scientific question have?

A
It should lead to a hypothesis that is not testable.
B
It should have a very broad focus with many variables.
C
It should repeat a question that the researcher has answered before.
D
It should be based on observations instead of just imagination.

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