During World War II, U-boats could typically stay underwater for about 18-24 hours before needing to resurface to recharge their batteries and replenish their air supply.
islands are not floating. they are the peaks of underwater mountains.
In the early 1900's most Americans travelled by horse, train, or boat. They tended to stay home, although they might make a long distance travel on a train, or boat. In the time before cars, and planes, Americans tended to stay within a short distance of their homes.
They stayed on a the cheapest accommodations on a steam boat. called steerage,. horrible conditions.
By traveling in Longships from Scandinavia across the North Sea.
Paint does not affect how long the turtle can stay underwater..
A penguin can stay underwater for about 15 minutes and can go to a depth of 1700 feet.
20min
about a minute
Adult gray whales can stay underwater for approximately 10 - 15 minutes.
they will be dead
During World War II, U-boats could typically stay underwater for about 18-24 hours before needing to resurface to recharge their batteries and replenish their air supply.
40 minutes
Yes it is, as if you stay underwater for too long, your lungs can't take it, and you may choke/ faint. Only a few mammals (whales, dolphins, porpoises, etc.) can stay underwater for long periods of time.
no, but they can stay underwater for a long time
He can't.
Because they have specail lungs