The answer is letter
D.
<span>
Economists often use
the aggregate supply and demand model to reflect the total amount of goods and
services required at all possible price levels during a specific period. It
reflects the overall price of foods and services in an economy for a given
period and is often illustrated with the supply-demand curve. This shows the
relationship between price levels and quantity of output that a particular firm
is willing to provide to the general public.</span>
Cellular respiration is the process by which the chemical energy of "food" molecules is released and partially captured in the form of ATP. ... In glycolysis, the 6-carbon sugar, glucose, is broken down into two molecules of a 3-carbon molecule called pyruvate.
Answer:
The source is mainly called headwater and its examples are waterfalls, groundwater, rainfall, and snowmelt in mountains. Basically, it is affected by the gravity
Explanation: