Advantages:
>No cables needed.
>Multiple channels available.
>Wide bandwidth.
Disadvantages:
>Line-of-sight will be disrupted if any obstacle, such as new buildings, are in the way.
>Signal absorption by the atmosphere. Microwaves suffer from attenuation due to atmospheric conditions.
>Towers are expensive to build.
The question that could be investigated through scientific research is B. Does a newly synthesized chemical reduce bacteria? The answer is B. Because the other questions aren’t science questions. They are bias.
The ph . this affects it because the more ph there is the more enriched the soil is. it fluctuates according to environmental factors e.g acid rain