Fact 1: Adding salt to a liquid decreases the melting point of that liquid. Fact 2: The melting point depends on the nature of the liquid. Given the two facts above, adding salt to a liquid changes what aspect of the liquid?
OPTIONS:
- salinity
- Dilution
- energy
- nature
- Energy.
- heat
- ligt
- reduce
nature
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Fact 1: Running water is better able to dissolve oxygen and nutrients than standing water. Fact 2: Also, running water in rivers is the major force of erosion on the surface of the earth. Given the two facts above, which body of water would be able to dissolve oxygen and nutrients the best?
OPTIONS:
- NaCl
- Lake
- Puddle
- Pond
- rain
- CO 2
- River
- sugar
River
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Fact 1: Blood pressure is highest in arteries and lowest in veins. Fact 2: By the time blood leaves capillaries and flows into veins, pressure has decreased greatly. Given the two facts above, what happens to blood pressure after it leaves the arteries?
OPTIONS:
- Dehydration
- negative
- decreases
- movement
- sweating
- Damages them
- It expands
- heat produced
decreases
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Fact 1: Apesticide is used for protecting plants by killing insects. Fact 2: Plants are poisoned by herbicides, animals by pesticides. Given the two facts above, what doesn't protect plants?
OPTIONS:
- viruses
- smallpox
- herbicide
- steroids
- A virus
- Nematoda
- chickenpox
- cigarettes
herbicide
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