You have reached a final decision: you are going to create a new lunch program that will include healthier foods. list one benefit and one cost of the new lunch program.

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Which greenhouse gas is emitted when burn fossil fuels for energy? a.nitrogen b.oxygen c.carbon dioxide d.helium

What factors contribute to the effect an environmental toxin has on the human body?