Answer: matter that settles to the bottom of a liquid dregs.
Sedimentary rocks are classified based on how they form and on the size of the sediments, if they are clastic.
Explanation:
Answer:
Oxygen, origin of plants and chloroplast.
Explanation:
The oxygen present in our atmosphere was generated by various species of cyanobacteria during the Archaean and Proterozoic Eras. origin of plants on the earth is other great contribution of the cyanobacteria. The chloroplast which is present in plants due to which they make their own food is actually a cyanobacterium living within the plant's cells.
Answer:
Water is the waste product of the electron transport system when performing in the presence of oxygen.
It acts as a layer of protection in the cell,it helps keep cell shape, and prevents dehydration.