Compared to the thickness of Earth, Earth's atmosphere is
A) about the same thickness.
B) a thin layer surrounding the planet.
C) a thick layer surrounding the planet.
D) is about ten times thicker than the Earth itself.

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water.b. they use chlorophyll and oxygen to make carbon dioxide and water.c. they use sunlight, water, and carbon dioxide to make sugars.d. they use sunlight, water, and oxygen to make chlorophyll.