Answer:
but much research has been done and more has learned about brain injuries in the last 5 years
Explanation:
because this shows they are telling more players about the injuries and informing them about the dangers of playing
It is saying to give the definition of the word ambiguous, if that didnt help then you need to ask more clearer.
Answer:
it can be at least a foot thick and contains lots of tannins, a compound that makes redwoods resistant to insects, fungus and diseases.
Explanation:
i did it!
