I think the best answer is D
Population Changes
Change is inevitable in nature.
Ecosystems have to cope with sudden changes like hurricanes and long term changes like ice ages.
Healthy Ecosystems will withstand the stress caused by change. Populations will recover or adapt to a new climate.
Population Changes
Stressed ecosystems do not handle change well.
They are already fragile or out of balance. They react with population spikes (boom) and population crashes (bust)
Population spike (boom)- Increase in population happens quickly.
Population crash (bust)- Decrease in population happens quickly
Sometimes a stressed ecosystem will not recover from change.
Population Effects Ecosystems
If a change affects one population in an ecosystem, the change will be felt throughout the system over time.
When one population of organisms increases or decreases, other populations will be affected because all living things are interrelated.
Answer:
Two
Explanation:
Nitrate has a charge of negative 1 and the Iron (II) tells us the iron in that formula has a charge of +2, so in order for the iron to have to equal positive two, there has to be two negative. Since on nitrate ion is -1, you need two to make -2.
Answer:
Partial pressure
Explanation:
the scientists is measuring different pressure, so it would be partial pressure. Hope that this helps you and have a great day :)
