*Question*
Answer the question below: When water absorbs salt the water becomes more dense or less dense? Assuming that: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.
**Answer**
more dense

*Question*
Answer the question below: The United states has less industry than South Korea. Therefore, there is more hazardous waste in South Korea or the United States? Assuming that: Nations that have more industry produce more hazardous waste.
**Answer**
South Korea

*Question*
Answer the question below: A dark skinned man and a light skinned man are being tested to see who produces vitamin D faster. The dark skinned person will have vitamin D in amounts that are greater or lesser? Assuming that: Pigments in the skin act like a filter that can prevent the skin from making vitamin D. As a result, people with darker skin need more time in the sun than people with lighter skin to make the same amount of vitamin D.
**Answer**
lesser

*Question*
Answer the question below: Sinclair is looking at the effects that factories are having on developing countries natural resources. He studies one country that is building fewer factories. In that country, the natural resources are likely experiencing less or more demands because fewer factories are being built? Assuming that: Developing nations will also increase demands on natural resources as they build more factories.
**Answer**
less