These are all matching questions
1. Sanction. Countries may place restrictions between each other if they can not come to an agreement that benefits both.
2. Embargo. Example- The U.S. and Cuba have had an embargo. Neither country will trade with the other.
3. Quota. This allows only a certain amount of a product to come into a place. This may be a good thing if a substance is illegal or if the substance or product could somehow be used for the wrong reasons.
4. Subsidy. Sometimes the government will help farmer's by giving them money to plant certain crops. This helps both the economy and the farmer.
5. (Protective)Tariff
6. Boycott. People could boycott a store, if they do not agree with company's beliefs. An example would be Target allowing Transgenders into women's restrooms.
Answer:
Calculate the mean monthly temperature by adding up the daily mean temperatures for each day of a month and then dividing that sum by the number of days in the month. For example, for the month of January, add up the 31 mean daily temperatures, then divide by 31.
Answer:
d. earths rotation on its axis
The Volga river is the largest river in Europe, so that should be the answer.
If the ice melts, the temperature could increase.
Hope this answer helps, If you have any other questions just feel free to ask :)