Answer:
So far scientists have not found a way to find the exact age of the Earth directly from Earth rocks because Earth's oldest rocks have been recycled and destroyed by the process of plate tectonics. Ancient rocks exceeding 3.5 billion years in age are found on all of Earth's continents
Explanation:
Answer:
<em>The correct option is D. It is carbon dioxide released by respiration.</em>
Explanation:
The process by which ATP is abundantly formed in organisms is termed as cellular respiration. Cellular respiration can be described as a process in which carbon dioxide and water are produced from glucose and oxygen. ATP molecules are synthesized by this process which are used for cellular activities.
Hence, the substance X in the investigation shows carbon dioxide which was produced when the yeast cells began to respire. Yeast cells can respire either in the presence of oxygen or without oxygen.
Answer:
the process in which bacteria convert nitrogen is called nitrification
Answer:
carbon dioxide
Explanation:
Hope this helps! :)
because with to much of it in the atmosphere it would become harder for us to breath and the affects of oxygen deficiency are bad.
