Answer: (1) photosynthesis occurred
Explanation: The photosynthesis process in cianobacteria changed the composition of earth's atmosphera, rising oxygen levels. This could be possible since photosynthesis used energy from the sun to produce energetic intermediaries to synthesize sugars, and as byproduct due to water photolisis, is oxygen.
It wants you to explain why its a chemical change. Signs of chemical changes are formation of gas bubbles, cloudyness, change in color or odor.
Graph c is the only graph that shows a growth curve and a carrying capacity so it is graph c
It has11 protons and neutrons atomic number=11 mass=22
Answer:
2 > -4
Explanation:
❌ -4 > - 3 are incorrect bc -3 is greater than -4 by -1
❌2
❌1
✔ 2 > -4 is the correct choice i belive.
