It is B, it could also be D, but it is most likely B. Hope this helps.
Eroding the rock slowly away
Good Luck :) !
Amazona Society UK The Amazona Society UK was formed in the early 1990s to provide a pool of knowledge about Amazon Parrots. This information has enabled many owners to produce healthy generations of Amazon parrots in captivity, unsurpassed in the history of bird keeping.
<span>there’s another way to retroviruses is to make
more strong screening methods to tell if the transgene is functioning properly
in the embryo before it is implanted in the uterus. The approach leads to fewer
problems with development, but it has raised concerns about the possibility.</span>
The Precambrian time refers to the time 4.5 billion to 542 millions year ago. This period is characterized by having reduced atmosphere and included reduced compounds. Scientists believed that atmosphere at that time was devoid of free oxygen and CO2 was present in excess. Before the complex life evolved on the Earth, the Precambrian Earth's ocean contained dissolved carbon dioxide.
