This is a common term nowadays and most people are aware of it but simply choose to ignore
no use of this sentence. better give an example to explain its effects.
A second reason being hunting down of endangered species for their skin or body parts
where is 'Helping Verb'? A second reason is to hunt down the endangered species for their precious parts.
This clearly shows how the animal kingdom is being affected by the killing of animals.
rather conclude ur point like' this merciless killing further decreases their species
There are several things that can be done to prevent this from happening.
again no use. start like this: To take preventive measurements, first of all, ...
ur concepts r really good just need a little bit more practice and do grammar as well.