In a study, the independent variable is the thing that you change to see how the change produces different results. In this study, the independent variable would be the use of nicotine.
True. Indirect sunlight does not directly pose any danger to the skin. This is because exposure is less and the heat that is generated from the sun does not penetrate other layers of the skin. But over a long period of time, this can indirectly affect the body that is why there are a lot of skin protecting products available in the market.
The last one D. The health care industry does not offer equal access to health services and resources.
Answer:
muscles of the veins and arteries, abdominal muscles and liver gravity.
Explanation:
As you go farther up into Earth's atmosphere, there is less are and less pressure!