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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:

School should:

1) teach subjects important for life, because school is the first place that gives the child all basic knowledge.

2) teach different foreign languages, because learning foreign languages has a positive effect on the general ability to think and erudition, the child interacts with a foreign culture, discovers new traditions and customs.

3) give free education, because not all parents have money for their child's education, if all schools become paid, then the number of pupils will sharply decrease.

4) have good teachers with new ideas, because times are changing, and therefore new ideas and teaching methods are needed, which will allow pupils to attend school with pleasure.

5) have a good gym for sports, because sports are an integral part of our life, and sometimes not all schools have playgrounds and gyms, which makes it difficult to exercise.