Carbon shares 4 electrons to complete its valence shell
Answer:
C Noise pollution
Explanation:
because organisms create noise.
The leaves grow when the plant is growing.and the leaves are attached because it's part of the plant
Enzymes are biological molecules that significantly speed up the rate of virtually all of the chemical reactions that take place within cells. The vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.
Two on bottom are erosion and the top left one. the other two on top are weathering
