Answer:
c
Explanation:
Nitrogen has a number of important uses. It can be used to replace air and eliminate oxidation of materials. Its most important use is in creating ammonia, which in turn is used to make fertilizer and explosives. Liquid nitrogen is used as a refrigerant for very low temperatures

1 minute of latitude is equal to 1 nautical mile.
Just like an hour of time, there are 60 minutes in a degree of latitude.
Therefore, there are 60 nautical miles in each degree.
An experiment is a scientific procedure that is used to demonstrate a fact, test a hypothesis or make a discovery
Moraines are made of till. They form when a glacier stays in one place for a long time and deposits a pile of till, then it retreats and leaves a moraine.