pollution from truks,factoreys,cars,trains,fires and buses are effecting the ecosystem
Dust and sand storms do not destroy deserts, they simply rearrange the substrate a bit.
Yes, people have a variety of occupations in the deserts.
If you want to destroy a city and kill thousands of people, it is the quickest way of doing so.
Austria has no deserts.
The damage is the grasslands are being overgrazed, and become deserts. Some solutions are to preserve the savannas, control overgrazing, and have people make sure that they do not destroy the savannas.
Some deserts, such as the Thar Desert, have relatively dense populations of people. Some deserts have few people. Each deserts has its own statistics.
Although Haiti does not have any deserts it is deforested with trees
yes
By 'they' I assume you mean people. Yes, millions of people around the world live in deserts, including the author of this answer.
Most people who live in deserts live there because they like the desert. I live in a desert and love it.
It is difficult to provide an exact number of people who die in deserts each year as data may vary and not all cases may be reported. However, desert conditions can be harsh and unforgiving, leading to fatalities due to dehydration, heatstroke, and other related challenges. Many of these deaths occur in regions like the Sahara, Australian Outback, and the southwestern United States.
Their deserts were used to protect them from invasions.