Hello Sara!
This would have a great effect on our local ecosystem, considering cars, and air pollution, are some of the biggest threats when it comes to pollution. Air pollution is the biggest threat when it comes to pollution. Smoking, driving cars, and doing really anything that involves smoke and fire, is bad for not only us, but the environment, and living things around us.
Hope this helps, and feel free to ask me for help anytime!
<span />
Answer:
I think it mRNA will be the answer
"More people walk to school or work" is the scenario among the choices given in the question that <span>would most likely lead to a higher level of physical fitness among people who live in a city. The correct option among all the options that are given in the question is the second option or option "B". I hope it helps you.</span>
The answer is B
Both frogs and fish are exothermic, or coldblooded. This means that they cannot control their body temperature by internal means. Another example is that fish and frogs hunt for fresh pray and are willing to eat dead animals and plants.