Answer: Most of Earth's oxygen comes from tiny ocean plants – called phytoplankton – that live near the water's surface and drift with the currents. So, mostly from plants, trees etc...
Hope I helped!
Answer:
is this a question on your classwork or just a riddle lol
Explanation:
The correct answer is all of the above
Answer:
it will be positive since beans contain starch.
Answer: This leads to the release of harmful greenhouse gases into the atmosphere and the eutrophication of our waterways.
Explanation: