What would a sports enthusiast or a traveler need to know about the factors that can affect how long the body can last in an energy crisis?

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Select the word from the list that best fits the definition the temperature to which air must cool to be saturated

Pulmonary arteries carry highly oxygenated blood. true or false?