One reason it was a health threat is it caused teeth to become ground down which would then lead to infections. The same was true with their eyes and lungs, sand would be blown into their eyes or inhaled into their lungs and then could cause infections.
Answer:
to create laws to protect the rights of colonists
The letter A is the one that represents a neurotransmitter acting via direct effects.
<h3>What is a neurotransmitter?</h3>
These are chemical messenger that helps carries signals across the neurons and target cells throughout the body.
Hence, the letter A represents a neurotransmitter acting via direct effects because its involves direct connection between the neurons.
Therefore, the Option A is correct.
Read more about neurotransmitter
<em>brainly.com/question/26387085</em>
I think the correct answer from the choices listed above is option C. Tinker v. Des Moines and Texas v. Johnson were cases involving the exercise of symbolic speech. Tinker v Des Moines was about students rights to free speech when being published by a public school. <span>Texas v Johnson overturned a law against desecrating the US flag. </span>
Answer:
War is a development issue. War kills, and its consequences extend far beyond deaths in battle. Armed conflict often leads to forced migration, long-term refugee problems, and the destruction of infrastructure. Social, political, and economic institutions can be permanently damaged
Explanation: