All of it was processed by bacteria
<span>To generate oxygen in an apparatus, the gas stored must have oxygen in it. Then the remainder gas is either burnt or released in air. CO2 is one gas that has oxygen. If the apparatus has CO2, I can generate oxygen. After taking oxygen from CO2 in the apparatus. The gas which remains is C that is carbon. This gas is released in the air mostly in open.</span>
Answer:
B. Waves transfer both matter and energy.
Explanation:
When waves travel through water, the moving water particles continue to return to their starting position because waves transfer both matter and energy.
The answer is the fourth one: Decrease in the fertility of the soil. If you just do crop rotation (harvesting a crop then planting the same type on the same soil) for many years, the soil just loses fertility because of so many of the same plants just using and depleting the fertility from the soil, making the soil less nutritious for the crops.