Question

Combine the following two simple sentences into a complex sentence. Change the sentence tense if needed.

Answer 1

Answer:

The global community suffers because the ozone layer collapses  

Explanation:

a complex sentence always needs a dependent clause and to use a dependent clause we need subordinating conjunction. An example subordinating conjunction is because, and, although, even, since...etc

Answer 2

Answer:

The ozone layer collapsed and global community suffered