Answer:
“Stromatolites are pervasive in the fossil record and are some of our earliest examples of life on Earth,” he says. “The microbial mats that created them were predominantly made up of cyanobacteria, which used photosynthesis – like plants do – to turn sunlight into energy while producing so much oxygen over time they changed the early Earth’s atmosphere to make it habitable for complex life.
Answer: Direct proportion. The salinity of water in the ocean rises with higher temperature because water is evaporated from the ocean, leaving more solutes (salts) in it.
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Since a secondary source is a source written after an event has occurred, I want to say that the answer is A. Hope this helped!<span />
<span>What a fascinating question! Just out of college, on my first job,
I was called to the delivery room to assist the obstetrician in
collecting a blood sample from the not-yet born fetus? scalp. I was
nearly immobilized at the sight of the impending birth. Ever since
that night, I have gotten goosebumps when witnessing a birth. It is
certainly an amazing event, and pondering the entire journey from
conception to birth is marvelous!
Some of the material I have found is published by religious, political
and anti-abotion sites. Neither Google Answers nor I endorse any of
these sites. Such web pages were cited here for conception and
gestation information, and not because of ideology.</span>
