Hi mark me brainliest please
According to this page "The heart pumps about 2,000 gallons (7,571 liters) of blood a day through its chambers." 2,000 gallons per day works out to 83 gallons per hour, or nearly 6 quarts per minute. So it takes about one minute for blood to make the round trip to the heart.
Answer:
No, John is wrong.
Explanation:
Pineapples are one of the popular fruits among people and people eat pineapple when they are ripen. It tastes sweet and juicy. But unlike most of the other fruits, pineapple does not ripe once it is plucked. It tastes very sweet when it is properly ripen.
In the context, John kept the left over pineapple in the fridge at about 15 degree Celsius and he found that the pineapple tastes sweeter the, This is because the sugary juices from the parts that is ripen trickles and spreads to all the parts of the fruit. So it tastes sweeter. It is not because of any enzymes.
Consumption and Pollution of nonrenewable resources. Hope it helps!