Answer:
stromatolites
Explanation:
Stromatolites or stromatoliths are layered mounds, columns, and sheet-like sedimentary rocks that were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe. Fossilized stromatolites provide records of ancient life on Earth.
Barnard's second transplant patient Philip Blaiberg, with the operation performed at the beginning of 1968, lived for nineteen months and was able to go home from the hospital.
Hello!
The term that describes the amount of water vapor in the air is absolute humidity.
Hi ;)
The ultimate source of heat in the process of global warming is - greenhouse gases.
Also, f<span>umes
get into the atmosphere and as a result huge amounts of carbon dioxide and sulphur lead to
heavy smog over cities </span>
.
I hope it helps ;)
When river water<span> meets </span>sea water<span>, the lighter </span>fresh water<span> rises up and over the denser </span>salt water<span>. </span>Sea water<span> noses into the estuary beneath the outflowing </span>river water<span>, pushing its way upstream along the bottom. Often, as in the Fraser </span>River<span>, this occurs at an abrupt </span>salt<span> front</span>
