A gas commonly found in smog is ozone. Correct answer: A
Smog generally occurs in the lower part of the atmosphere is composed mainly of tropospheric ozone (O3), primary particulate matter such as pollen and dust; and secondary particulate matter such as sulphur oxides, volatile organic compounds, nitrogen oxides (NOx) and ammonia gas.
Answer:
The immune response is how your body recognizes and defends itself against bacteria, viruses, and substances that appear foreign and harmful.
Information
The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.
Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.
Answer:
hope this helps
Explanation:
Depressants: These are drugs that slow down your brain function. Examples include alcohol, alprazolam (Xanax), and barbiturates. Stimulants: These drugs elevate your mood and increase your alertness and energy. They're usually highly addictive and can cause paranoia over time.
Pathogens usually enter our bodies through the eyes, mouth, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread, or be transmitted, by several routes.
So i would say no, that is false?
