WorksheetsChapter 6: How Do Ecosystems Change over Time
Total questions: 10
Worksheet time: 5mins
1. Grasses replace mosses in a process called.
succession
extinction
reclamation
2. Recycling is one kind of.
competition
adaptation
conservation
3. The number of organism in a population is limited by.
succession
conservation
competition
4. Cleaning up polluted water is an example of
reclamation
competition
extinction
5. How can we reduce the amount of acid rain that falls?
by driving less
by restoring wetlands
by planting trees
6. What forms a community?
symbiotic relationships
several populations
an ecosystem
7. Which of these is usually in the last stage of succession?
bushes
lichen
trees
8. Which of these is not a predator or prey?
corn
alligator
antelope
9. Which of these is not a result of human actions?
acid rain
conservation
symbiosis
10. Which of these could possibly lead to an extinction?
adaptation
pollution
reclamation
