Answer:
Major threats to freshwater fishes and other freshwater biodiversity, include: habitat modification, fragmentation, and destruction; invasive species; overfishing; environmental pollution; forestry practise; and climate change.
Environmental factors do influence natural selection because they can increase or decrease the population of a species, by selecting those with only favorable traits.
Answer:
Climate change has the effect of determining migration of people.
Explanation:
A hazardous environment eg. changes in rainfall patterns, increase in temperature, sea level rise, cyclone frequency has the effect of people migrating to cooler places whereas a conducive environment has the effect of attracting more people to settle there.
