Answer:
he should take a break and don't review too hard or else it will result in forgetting everything he'd learned the past day.
Explanation:
Here's the most prominent inventions from the early 1900's
1920- Hair Dryer
1920- First radio station
1920- The Thompson Sub-Machine Gun
1920- The Band Aid
1921- First robot built
1923- Traffic Signal
1925- Mechanical Television
1926- Liquid Fueled Rockets
1928- Penicillin
1929- Car radio
Answer:
The Immune System protects the body from infections and pathogens.
Explanation:
