<span>The correct answer is letter C.
Increasing automobile use is not a strategy for improving the long-term health
of cities. Automobile use produces carbon dioxide emissions at high levels
which add up to the destruction of the Earth's atmosphere. 30-40% of carbon
dioxide emissions are caused by this and other human activities (e.g. factory
industries, mining).</span>
<span>BENEFITS FOR EXERCISING!
-improve balance and walking;
- strengthen muscles;
- promote relaxation and muscle relaxation;
- increase physical endurance;
- improve range of motion;
- reduce fatigue;
-to protect against osteoporosis;
- improve heart condition;
-reduce sugar levels by increasing the intake of insulin in muscles;
- to act on the associated secondary problems such as constipation, insomnia, stress, depression;
-promote <span>social interaction.</span></span>