First and foremost, (a)   has produced an excessive amount of greenhouse gases.

An ... amount of greenhouse gases.

(a)  

One major drawback of ... is thousands of endangered species on record.

(a)  

Global warming has the possible disadvantage, ... are melting as sharply as ever.

(a)  

The main advantage of the marine reserve is to contain and preserve ... as well as endangered species.

(a)  

Besides weighing the pros and cons, environmentalists also ... ( pay money to make a profit )

(a)  

The disadvantages outweigh the advantages, the dumping of chemicals, plastics, and accidentally (a)   is one major drawback,

In conclusion, we truly appreciate the opportunity to ... ( do physical activities ) to preserve endangered species.

(a)  

The sooner you ..., the less your electronic bill will be.

(a)  

There are pros and cons to ... . From my perspective, the possible disadvantage is at risk of making a loss.

(a)  

For one thing, an electrician positively encourages us to ... lights and taps when they are not in use.

(a)  

The result is more and more people approve of ... twice as many as they did.

(a)  

The top of Mount Everest is 8,848 m above (a)  

What are the benefits of (a)  

... has the possible advantage, however, the less the better.

(a)  

BTS is the most famous of all Kpop groups, they take responsibility for ... ( community )

(a)  

In addition to cherishing marine life a bit more sincerely, more and more people fully recognize they should ...

(a)  

The slightly more you ( aware of )..., the much purer our planet will be.

(a)  

There are half as many species as there were a long time ago, conservationists honestly believe the most effective solution of all is to ...

(a)  

As a result, organizations don't expand so sustainably as businesses. Therefore, most people are willing to ... create exquisite marine works of art.

(a)