The student created an accurate model of calcium carbonate. The model includes the correct number of gumdrops for each element in calcium carbonate, consistent use of colors for elements in calcium carbonate, and the correct number and placement of toothpicks (bonds).

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

i believe the answer is three water molecules