Which statement  best  explains scholarships that cover the costs of an education? they require the use of savings. they need to be paid back later. they are often based on achievement. they require borrowing money from a bank.

Option (c) is the correct answer.

Explanation:

Scholarship is the help or aid provided by government, school, college, and foundation etc on the basis of performance level of an individual.

For example, a government is providing scholarship to girl students who scored 90% and above marks in their board examination.

Sometimes families can't afford education fees for their children and at that time scholarship's help a lot to achieve one's goal.

Thus, we can conclude that the statement they are often based on achievement best explains scholarships that cover the costs of an education.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

step 1 ammonium can be absorbed by plants, but some is converted into nitrates which are better for plants to absorb. this is called nitrification. 2. step 2 the deer eats the plants and uses the nitrogen-containing proteins for cell growth. 3. step 3 bacteria in the soil conduct nitrogen fixation to convert nitrogen gas from the atmosphere into ammonium. 4. step 4 some of the nitrates are absorbed back into plants, but denitrification breaks down the nitrates into nitrogen gas released back into the atmosphere. 5. step 5 nitrogen is found in the urine, which gets broken down into ammonium through the process of ammonification. 6. step 6 plants absorb the ammonium and begin assimilation, the process to add the nitrogen to protein.