First- b
second - d
third - c
fourth - a
Answer:
radioactive dating? what the hell is that?
Explanation:
After 20 years a resorted wetland can contain approx. 80% of plant biomass of a natural wetland.
Wetlands are one of the most endangered ecosystems in the world according to the UN and restoration is the only way to save these habitats.
The fact that restored wetlands can contain up to 80% of plant biomass shows how successful restoration programs can be.
A&E Maybe hope this helps you out for this subject
<span>Every cell contains certain structures that perform specialized functions for the cell. What are these structures called?
</span>b. organelles