Why are barriers sometimes placed on trade?

What causes an unsaturated fatty acid to have a different shape than a saturated fatty acid? o a. unsaturated fatty acids have more hydrogen atoms. o b. unsaturated fatty acids have double carbon bonds. o c. unsaturated fatty acids have more nitrogen atoms. o d. unsaturated fatty acids have single carbon bonds.

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite