Действие происходит постоянно, обычно, время от времени. (cook)dinner. (read)books. (not watch )tv. (not listeh)to music. (not play)the piano.

I usualy cook dinner
She often reads books
They never watch TV
He never listens to music
I never play the piano.

1 What can we do to reduce the pollution of the atmosphere?
2 The change in the climate has produced disastrous floods.
3 Many rare species are threatened with extinction.
4 Many of the gases produced by factories are harmful to our health.
5 Exhaust fumes have damaging effects on the environment.
6 Many countries must try and control the growth of the population.
7 Protecting the environment is essential to our survival.
8 The protection of the environment is everyone’s responsibility.
9 While some countries get richer, the poverty in others gets worse.
10 Millions of people in the world are threatened with starvation.

2)Air pollution poses a serious health risk in many European cities. But specific solutions are within reach.

Symbolbild Gesundheit Abgase Luft (picture alliance/WILDLIFE/C.Heumader)
Around 3 million deaths worldwide were linked to outdoor air pollution in 2016, according to the World Health Organization (WHO). The European Environment Agency (EEA) says air pollution is the single largest environmental health hazard in Europe, causing around 467,000 premature deaths in Europe in 2013.

The largest contributor to air pollution in European urban areas is traffic. Vehicular particulate matter poses a health risk to about 85 percent of people living in European cities, according to the EEA.

Automobiles, in particular diesel cars, are the primary source for particulate pollution. Tire particles, stirred up from the streets, also enter our lungs as we breathe.

Nitrogen oxide (NOx) emitted from cars harms our respiratory systems, and may cause asthma. Diesel cars emit NOx - on average, even new models release six times as much NOx as gasoline engines.