1.What is the main factor causing the salinity of the Everglades to change?(1 point) snake populations

flood control levees

climate change

transportation canals

2.Which animal was responsible for a 99% drop in the opossum populations in the Everglades by 2012?(1 point)

wading bird

fox

python

whooping crane

3.How are Burmese pythons and whooping cranes similar?(1 point)

Both species were relocated to new environments as pets.

Both species’ populations were affected by human actions that caused environmental changes.

Both species’ populations were almost wiped out because of a variety of environmental changes.

Both species became top predators in their new environments.

4.A student is conducting research on the impact of humans on whooping crane populations in the North America. Which statement best supports the student’s claim that animals have been positively impacted by human intervention?(1 point)

Captive-bred whooping cranes have been introduced to natural environments.

In the 1800s, North America was home to over 1,000 whooping cranes.

In the early 1900s, the U. S. and Canada jointly signed a migratory bird treaty.

Although the hunting of whooping cranes was criminalized, their numbers continued to decline.