1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Brilliant_brown [7]
3 years ago
13

When did it become mandatory to wear hard shell football helmets?

Health
1 answer:
kondaur [170]3 years ago
8 0

Answer:

1920s and 1930s,

Explanation:

it's worth reiterating that helmets were not mandatory. That wouldn't happen until 1943. During the 1920s and 1930s, variations of the leather helmet appeared, but in 1939, the game changed –or at least became safer– when John T. Riddel introduced the first plastic helmet

You might be interested in
Thermometers used in the kitchen do not contain mercury <br> True or False
Anit [1.1K]
False they do not contain mercury
8 0
3 years ago
Read 2 more answers
Which action can lead to intentional injuries ?
iVinArrow [24]
Hi,

Which action can lead to intentional injuries ?

 - being in a domestic fight
5 0
3 years ago
What mood disorder is characterized by alterations between periods of extremely high levels and extremely low levels of activity
iogann1982 [59]
The answer is: Bipolar disorder.  
5 0
4 years ago
What is an innate belief about something without conscious confederation
defon
<h2>Answer:</h2><h3>Intuition – An innate belief about something without conscious consideration.</h3>

<em>hope</em><em> </em><em>I</em><em> </em><em>help</em><em>!</em>

7 0
3 years ago
List out the four organ involved in circulatory system???​
lakkis [162]

Answer:

1.Heart

2. Lungs

3. Brain

4. Arteries and veins

Explanation:

6 0
3 years ago
Other questions:
  • Why can we say that population education is a multidisciplinary subject?​
    11·1 answer
  • Which of the following are common barriers to good fitness? Check all that apply. low costs
    8·1 answer
  • Loftus used her research to prove that __________. A. memories of childhood trauma are usually true B. adults’ memories are conc
    13·2 answers
  • What type of position do you sleep in<br> (Im taking a survey!)
    9·2 answers
  • Can u scan my scienece homework
    8·2 answers
  • Okay so I’ve had my period for about 2/1/2 years now and well I still haven’t told any of my parents why? I don’t know. Anyways
    15·2 answers
  • If Angie decides to start an exercise program by walking one mile 3 days a week, she has _____. set a reasonable goal added resi
    6·2 answers
  • Match the following.
    13·1 answer
  • PLEASE HELP<br><br> What is your definition of wellness? How can one achieve being "well."
    8·1 answer
  • Which of the following is the best example of changes that occur during cognitive development?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!