Greater use of oil and other fossil fuels causes more pollution.  The oil rigs had an oil spill in the ocean, which caused less or more pollution?
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(Question)
Bigger stars produce more energy, so their surfaces are hotter.  Jan is comparing stars, specifically a small star and the larger Sun. Given the size of each, Jan can tell that the Sun puts out heat that is lesser or greater?
(Answer)
lesser


Ques: The hotter a resistor becomes the more resistance it has.  If Milo increases the heat he applies to a resistor, what happens to the resistance increases or decreases?
Ans: increases


(Q).
Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.  If Milo is growing a certain type of bacteria that can resist antibiotics and he increases the amount of bacteria he is growing, would mutations in the bacteria increase or decrease?
(A).
increase


Ques:It would be hard to get a big chunk of chocolate to dissolve in your milk or hot water. Maybe you could make hot chocolate from some smaller pieces like chocolate chips, but it is much easier to add a powder to your milk. This is because the smaller the pieces are, the more surface area they have.  Mary melts a 1 pound chocolate bar and 1 pound of chocolate chips in two pots. Which melts last bar or chips?

Ans:bar


More advanced farming practices allowed a single farmer to grow food for many more people.  Farmer Bill got a new machine to sift his wheat. This machine allows him to grow more or less food?
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