IDENTIFYING COMPLEX AND COMPOUND-COMPLEX SENTENCES

Yes, I am here with another super-fun homework!

As you will understand, last week we learnt sentence structure. I found it hard to recognize but I will try.
Now I will write which sentence is complex or complex compound in the exercise 7
I'm not sure about the answers but
Let's see.....

1. Energy conversation has become extremely important because millions of energy-consuming devices are in use everyday. (complex)

2. When builders construct new homes, they should install solar panels and other passive solar devices and as many energy-saving appliances as possible. (complex)

3. Although energy-efficient appliances cost more, their use result in long-term savings for the owner, and the environment benefits, too. (compound-complex)

4. Because legislators have enacted certain laws, all new cars must be energy efficient. (complex)

5. When cars use less gas, the air is cleaner, and people may have less trouble breathing. (compound-complex)

6. Though sulfur pollution is a threat to human health, it also damages lakes, wildlife, and buildings. (complex)

7. Although water power can generate electricity, hydroelectric dams may cause floods on farmland, in forests, and in wildlife areas. (complex)

8. We must always find ways of producing more goods, but at the same time we must reduce the amount of energy that we consume in producing those goods. (compound-complex)

9. Conservation and solar power are the keys to a safe future, so we must cautiously use the devices that cool, heat, and transport us. (complex)

10. Because our natural resources clearly cannot last forever, we must find better ways of conserving them. (complex)