Originally, life only existed in the oceans where the water was deep enough to shield organisms from UV radiation, but
shallow enough for photosynthesis to occurl-Around 600 million years ago there was a massive diversification of life:
the Cambrian Explosion. During this time life not only diversified but moved to land. This was made possible by an
important addition to Earth's atmosphere. What was that addition?
A)
ozone layer
B)
water vapor and clouds
C)
particulate matter from volcanic eruptions
D)
increased amounts of oxygen and carbon dioxide
Answers: 1
Geography, 23.06.2019 20:50
Question 51 ptssolve. assume the exercise describes a linear relationship.marty's tee shirt & jacket company is to produce a new line of jackets with a embroidery of atpvtenpoeyiliceorsuit ut itoare fixed costs of $59 u to set ud for production, andvariable costs of $39 per jacket. write an equation that can be used to determine the total costencountered by marty's company in producing x jackets. use the equation to find the total cost ofproducing 50 jackets.$2520s2532o $2540s2552
Answers: 1
Geography, 24.06.2019 08:00
What landform caused by water erosion and deposition is shown in the image?
Answers: 1
Geography, 24.06.2019 18:30
Regions are always defined by a. climate b. many different factors c. mountain ranges d. continents & bodies of water
Answers: 1
Originally, life only existed in the oceans where the water was deep enough to shield organisms from...
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