b. the burning of fossil fuels for energy and transportation
Answer:
Algae
Explanation:
Algae are found in large groups and are diverse. They are plant-like organisms as well.
Answer:
Photosynthetic organisms were making oxygen, but it reacted with the iron dissolved in seawater to form iron oxide minerals on the ocean floor, creating banded iron formations. ... The oxygen that is now in the Earth's atmosphere was not there at the beginning.
Explanation:
Answer:
Atmosphere, hydrosphere, and geosphere.
Explanation:
A chromosome number of 92
