Answer:
Primary air quality standards are designed to protect the health of
✔ children and older people
.
People with asthma can expect clean air under the
✔ primary
standards in the Clean Air Act.
✔ Secondary
air quality standards provide protection of public welfare
animals and crops are covered under the act’s secondary air quality standards.
The left atrium receives blood and high oxygen levels from the lungs.
The amount of money, effort and time it will take
Illegal activities are taking place, I would say this as for example you don’t know if the person is dangerous or is armed and you could be arrested as you may look like you are involved in it
