(Q).
Answer the following question given this paragraph: Polar compounds, such as water, are compounds that have a partial negative charge on one side of each molecule and a partial positive charge on the other side. All polar compounds contain polar bonds (although not all compounds that contain polar bonds are polar. ) In a polar bond, two atoms share electrons unequally. One atom attracts the shared electrons more strongly, so it has a partial negative charge. The other atom attracts the shared electrons less strongly, so it is has a partial positive charge. In a water molecule, the oxygen atom attracts the shared electrons more strongly than the hydrogen atoms do. This explains why the oxygen side of the water molecule has a partial negative charge and the hydrogen side of the molecule has a partial positive charge. Q: All polar compounds contain what type of bonds? Choices: - balanced - strong - weak - polar A:
(A).
polar

(Q).
Answer the following question given this paragraph: At higher latitudes, the Sun's rays are less direct. The farther an area is from the Equator, the lower its temperature. Q: The farther an area is from the equator, what happens to the temperature? Choices: - it fluctuates - it increases - it stabilizes - it gets lower A:
(A).
it gets lower

(Q).
Answer the following question given this paragraph: Starches are complex carbohydrates. They are polymers of glucose. Starches contain hundreds of glucose monomers. Plants make starches to store extra glucose. Consumers can get starches by eating plants. Common sources of starches in the human diet are pictured Figure below . Our digestive system breaks down starches to sugar, which our cells use for energy. Like other animals, we store any extra glucose as the complex carbohydrate called glycogen. Glycogen is also a polymer of glucose. Q: What do plants make to store extra glucose? Choices: - water - fats - sugars - starches A:
(A).
starches