Answer:
The main idea is the point of the paragraph. It is the most important thought about the topic. The main idea is usually a sentence, and it is usually the first sentence. The writer then uses the rest of the paragraph to support the main idea.
A negative pressure respirator brings fresh air to you through a hose Does a negative pressure respirator brings fresh air to you?
If a leak develops in a pressure-demand respirator, the regulator sends a continuous flow of clean air into the facepiece, preventing penetration by contaminated ambient air. ... Negative-Pressure Airflow Negative-pressure respirators draw air into the facepiece via the negative pressure created by user inhalation. ( can I plz have brainliest I need 4 more to have a new rank)
Answer:
tend-or-befriend
Explanation:
they all came together as a community or in groups to give support to each other because of a threat that was the earthquake
Out of the choices given, the concrete nouns are toolbox, lamb, iron, and tooth.