1: a state formally cooperating with another for a military or other purpose.
2: combine or unite a resource or commodity with (another) for mutual benefit.
those are two defintions
source of info Goo_gle
Answer:
C.superlative
B. comparative
Explanation:
The sentence, "Our teacher is the tallest of all", is in the superlative form as it compares between three items.
The sentence, "The new poster is larger than her poster" is in comparative form as it compares between two items.
I guess it would be easier for us to define the disadvanatges if you tell us about the technologies you want to mention. For example, it is hard to think of technology and nature together but even advances like Artificial Intelligence (AI) that could not be further removed from the natural world are helping conservation efforts. Well, at least I tried to answer your question. More help you can get if you check the tips at Prime Writings site. Good luck with it!