Earths food chain starts with the sun then it goes to producers such as plants that absorbs the sun’s energy to produce their own “food”
Answer:
The rock fragments and soil -- sometimes as small as tiny sand particles -- are carried away by wind, water or irrigation. Weathering causes changes in the rock, such as color variations or decomposition, but erosion only moves the sediment from one place to another.
Explanation:
Hope this helps :)
Just took the test, the answer was 100, not 2
Answer:
There is a 50% chance their child will have blue eyes.
Answer:
False
Explanation:
Scientist believe that the primitive atmosphere lacked free oxygen. Oxygen is a highly reactive molecule that would have made difficult for complex macromolecules to appear and then create life. Rocks from the precambrian period support this theory.
Anaerobic cells appeared first, then photosynthesis appeared filling the atmosphere with oxygen and the aerobic organism develop cellular respiration to obtain energy, a process more efficient than anaerobic respiration.
