Please correct the following sentences(1).Thank you.

Hope you find the following answers ok:

1. Both .... and ... can let human lives more comfortable and richer.

2. Pollutions ... caused great damages, especially on people's benefits.

3. Only through enterprises' self-restraint cannot make the nature healthy in this competitive society.

4. The involution of the scope of pollution accident can be disastrous, so we need different professional knowledge and technology to avoid big tragedies.

5. The HK government's intervention is required not only for handling pollution accidents, but also for the purposes of preventing problems.

i can make it sound easier... xd... sorry if u english is kinda USy thu... cuz im from US... xd... and im only 15... so my vocab and grammar are limited...

1. Both worldwide development and progress of scientific technology can make human lifes more comfortable. (wait... rich???)

2. The pollutions caused by economic growth made severe demages, especially on benefits of humans (on earth?).

3. ??? what??? i dun get it??? i think those r 2 different ideas rite??? can u send me a message telling me what that meant??? xd... but heres a try... xd...
The nature will not be healthy in ths competing society. The only way to solve this is by Enterprise's self-restraint

4. The involution of the scope of pollution accident can be very huge, and different professional knowledge and technology can avoid big tragedies.

5. wait... u mean that hk governement "intervened" about handling pollution accident and prevent environment's pollution??? heres a try... xd
HK government's intervened not only the about the ways to handle pollution accidents, but also about the ways to prevent the environment pollution.