Answer:
I think
A comma is needed in this sentence after the word "but" to separate the two independent clause
I would say 4, it seems a lot clearer than the other answers to me.
Answer:
To inform
Explanation:
A brochure from a zoo will likely contain scientific facts and knowledge about the animals, as opposed to entertaining or persuading the target audience, making the author's purpose to inform.
Answer:
Explanation:
Humans need to interact with the environment to obtain our food, water, fuel, medicines, building materials and many other things. Advances in science and technology have helped us to exploit the environment for our benefit, but we have also introduced pollution and caused environmental damage.