Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves
Given the symptoms that Nasir is known to experience such as trembling, dread, difficulty breathing, he is having a panic attack disorder.
<h3>What is a panic attack?</h3>
This can be described to be a sudden period of fear that a person might experience. The fear is usually due to no underlying causes.
When they occur, the person may be triggered in such a way that they experience all of these symptoms.
Read more on panic attack here: brainly.com/question/1035256
Answer:
The correct answer is letter "B": community and personal valor.
Explanation:
Native Americans is a term referred to the tribes living in what today is the U.S. and Canada before English settlers invaded the continent and occupied their territories mostly by force thanks to the use of firearms. When it comes to religion and values, different native American tribes had different beliefs but all of them had in common the importance of keeping their lands for their communities' wellness.
<em>Native Americans placed especial value in equality and acceptance of all people. They did not use to value each other for what they had but for what they were.</em>
Answer:
Iron, lead, copper, and gold are all examples of minerals that are commonly found and processed in the United States and Canada.
<h2>Minerals.</h2>