1.The reporter noted there was a serious lack of resources available to us then
2.They admitted the earth was over populated then.
3.Anna said to ride a bike was good for the environment and great for our health.
4.Scientist warn oil spills damage the prime source of water for various cities marine life and even affect birds /Обратите внимание, здесь главное предложение в настоящем.
5.Our teacher explained to us that many chemicals destroyed the ozone layer because they interacted with ozone.
6.A famous ecologist said the use of nuclear energy had led to the threat.
7.The author of the article stated the high amounts of air pollution were caused by the development of several industries and water pollution.
9.I asked myself what the ingredients of these cleaning products were.
Объяснение:
1. If I didn't have a headache, I would do my work faster.
2. If my parents had more free time, we would spend a lot of time together.
3. If I travelled abroad, I would start vlogging.
4. If I were you, I would stop wasting my time on social media.
5. Unless I study harder, I won't pass my exam.
6. My friend agrees to help me when he has time.
7. If we had played better, we would have won.
8. If my parents had enough money, they would buy a new car.
9. Unless we have a ticket, they won't let us get inside.
10. If I get up early, I won't be late for school.
