This can be caused by over grazing from the livestock or even wild animals such as rabbits. Rabbits are known to breed very quickly and can destroy an ecosystem with their sheer numbers.
I think it C hope this helps
The reason why the animal that has been struck by the arrow
goes limp and quickly suffocates because the acetylcholine receptor sites are
blocked and this was made possible because of the drug curare they use in
poisoning the top of the arrows.
I think its true because the tornado is caused by the clouds.