2 Which of the following is an insoluble compound that is likely to be produced by the reaction below?
CaSO4 + Pbl →

Cal2

PbSO4

I2SO4

Pb

In which environment would primary succession occur? a forest with a few remaining trees after a recent wildfire an area of exposed rock after a glacier melts away beach that is exposed to the air at low tide an abandoned baseball field in a small town

How much carbon is stored in the atmosphere as co2

Quickly what are the following of organisms that existed over a wide area but only for a limited time period called a.soft fossils b.mold fossils c.index fossils d.trace fossils