The loss of forest causes floods and ____________. (erode)
They want to reconstruct the animals’ natural ____________. (environmental)
Sometimes providing as natural environment as possible for the animals can be _______. (risk)
We can not clean up our _____________rivers and seas overnight. (pollution)
The ___________ has threatened the park and many of the animals in it. (contaminate)
Many come to see the work being done to protect _________ species. (danger)
Erision ,environments, risky, polluted, contamination, endanger