Heliotropism (like sunflowers)
Might just be D must of them don't seem right to me
C. Carbon
Mercury is dangerous to humans
Carbon is the main element in organic compounds, so carbon is essential to life on Earth.
Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction<span> with water and carbon dioxide gas to produce food for the plant.</span>