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alexdok [17]
2 years ago
12

Air pollution in US National Parks is effecting the environment in what way(s)? a. Plant damage from ozone exposure b. High leve

ls of mercury found in endangered bat species c. Changes to alpine ecosystems due to nitrogen d. All of the above Please select the best answer from the choices provided A B C D.
Biology
1 answer:
Fofino [41]2 years ago
6 0

Answer:

a

Explanation:

cuz pick the ask because I felt like it was a good answer

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Do research about new hypothesis that has replaced an older explanation of something in the natural world
Gre4nikov [31]
I believe that what is meant with the phrase "older explanation" is none other that superstition. Therefore, I will give you one superstitious belief which is now explained by science.

In Southeast Asia, people used to believe that St. Elmo's fire appears in remote areas because a bloody battle occured in that place leaving disembodied souls of the dead wandering there in the night and even in sunshine!

For generations, many people believed that this is a fact and some even say that these apparitions are diabolical or demonic in nature. So often, caution is advised to people whenever a ball of fire appears out in the open. 

However, recent breakthroughs in the 21st century helped scientists to explain this mysterious phenomena. They found out that St. Elmo's fire is actually plasma, nothing special. Now, plasma is considered one of the states of matter! But mind you, it still does not explain why St. Elmo's fire seems to have a mind of its own!
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3 years ago
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Hope this helps!

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What's the answer to my question?
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<span> essential for growth and repair in the body
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Why would a grassland ecosystem have more primary consumers than a forest ecosystem
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Grass is easier for herbivores to digest.

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Explanation:

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