По английскому Составьте предложенияа) 1. At present one of the most important problems for mankind 2. The rivers, seas and oceans 3. That purifying air, water and soil is changing from a national to a global problem 4. Therefore, it is necessary 5. Scientists expect that 6. Large-scale experiments in this area b)1.are becoming seriously polluted by industry. 2. are successfully being carried out on a global scale. 3. it is possible to eliminate air and water pollution by planned actions of human society as a whole. 4. is evident to all. 5. to take measures to safeguard natural resources and the environment on a global scale. 6. is that air and water pollution is reaching very large proportions.

     a) 1. Is that air and water pollution is reaching very large proportions

2. Are becoming seriously polluted by industry.

3. it is possible to eliminate air and water pollution by planned actions of human society as a whole.

4. is evident to all

5. to take measures to safeguard natural resources and the environment on a global scale.

6. are successfully being carried out on a global scale.

Объяснение:

1. Business people are involved in the management of companies.

2. My father builds bridges.

3. Every year they spend a couple of months at the seaside .

4. In our orchard we grow potatoes and tomatoes.)

5. This museum exhibits the 18th-century organs, pianos (or piani) and grand pianos (or grand piani).

6. Why do financial crises happen?

7. I want to read Shakespeare's plays, both tragedies and comedies.

8. Roofs (or rooves) on houses vary in geometry, method of ventilation and covering material.

9. There are computer discs in those boxes.

10. At the Geography lessons we study nature phenomena.

I agree that food should be enjoyed but not all products affordable to everyone ...when finances sing romances" - to choose not to have.
about diets will answer:
...flag-diet... "finances sing romances" - the majority of our retirees, and perhaps in the future this same diet is waiting and more Mature generation, emergency... .
...fashion (a large number of variety of diets for weight loss, examples are pop stars, popular leaders, policy )
diet for health reasons ( i.e .vital diet) .
Age diet (sometimes the child cannot give what adults eat : hot peppers, pickles, products, special Ambassador and cooking ...)
diet religion (Don't agree?... fish days, fast days... .
In some cases, diet is the affirmation of his position, education willpower, fortitude... .