Answer:
Should be C! HOPE this helps! science isn't my best subject uwu
C. Protons and electrons must be equal as protons have a + charge and electrons are - so they cancel out
Answer:
They can worsen symptoms for people with breathing difficulties.
Explanation:
Ultrafine particles are small particles found in dirty air. They aren’t filtered due to their very small size. They enter the lungs and cause certain conditions such as oxidative stress, inflammatory mediator release, and could induce heart disease, lung disease and other systemic effects.
People who have breathing difficulties have their case worsened due to these particles.
Answer: A
Explanation: There is no need to conduct and experiment if you already know the answer
