Answer:
The answer is B
The Clean Air Act introduced a nationwide approach to reduce acid pollution. The law is designed to reduce acid rain and improve public health by dramatically reducing emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx).
The clean air act target lowering emissions of sulfur dioxide (SO2) and oxides of nitrogen (NOx).
The Clean Air Act mainly focuses on controlling and decreasing air pollutants that cause air pollution and can be harmful to people and nature. The Act aims to control certain types of air pollution, called criteria pollutants. These are harmful substances that can be found in the environment.
Ground-level ozone is a main part of smog and is made when the sun reacts with chemicals from factories, vehicles, and other things in the air. Particulate matter (PM) is a term used to describe very small solid or liquid particles.
Read more about clean air act here:
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Answer:
They had fertile soil so it made it eaiser for them to grow crops.
Explanation:
Freezing, or at a freezing point. This is because water starts to freeze into ice at this temperature.
Below 32 is considered cold
Answer:
D
Explanation:
it makes the most sense to me and my friends