Answer the question below:   A very efficient pair of solar panels will produce little energy or a lot of energy?    Assuming that:  The more efficient a device is, the greater the percentage of usable energy it produces.
a lot of energy
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Answer the question below:   Water found on Earth's hot regions is more or less dense that water found on Earth's cold regions?    Assuming that:  Water becomes more dense when it is colder and when it has more salt.
less
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Answer the question below:   Jeffrey subtracted more and more dough to the recipe. As he subtracts more, the force of attraction the dough is capable of increases or decreases?    Assuming that:  The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.
decreases
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Answer the question below:   Dan is on a ship, and sees that the waves are getting small! Dan can deduce that it means that the wind is blowing harder or softer?    Assuming that:  The faster, longer, and farther the wind blows, the bigger the waves are.
softer
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