Fluctuations in the phosphorus cycle in aquatic ecosystems . a.
can lead to changes in the growth rates of aquatic populations
b.
are never caused by human impact on the environment
c.
lead to a decrease in the amount of phosphorus found in sediment
d.
never occur naturally

In an effort to address concerns about global warming, a power plant in portland,oregon is designed to take all of its exhaust gases from its boilers and recycle the co2 using the solvay process to make sodium hydrogen carbonate. the reaction is shown below. nh3(g) + h2o(l) + co2(g) + nacl(aq) → nahco3(aq) + nh4cl(aq) how many liters each of nh3 and co2 (both at stp) would be consumed to produce 3.00 kg of sodium bicarbonate? the volume of both nh3 and co2 would be

What forms when chemical reactions combine pollution with sunlight?

6what is the importance of water on earth? a) it keeps the top layer of the geosphere cool b) it allows life to exist c) it provides ice at the poles d) it creates earth's blue color from space