approx 2 hours
fish, boat, swim.
No. Sharks are primarily saltwater fish. While one shark did swim a distance up the Hudson river, the Allegheny River is too far from the ocean. In order to get there a shark would have to swim up half the Mississippi River and the entire length of the Ohio River.
Researches have shown that hudson river is actually the safest river to swim in the United states. As long as you do not swim in the deep places, you are fine.
no where is clean to swim
No, because a river always has a source, and as you get closer to it, the river is blocked by locks, dams, or channels. More than 2000 miles of the Mississippi is used by barges, ships, and boats of many sizes, along a winding path from Minneapolis to New Orleans (1600 miles apart) and out into the delta.
Well, if you want to literally "swim" all the way from London to Paris, you're going to have to swim downstream the Thames river, then cross the English Channel, and then swim upstream the Seine river until you reach Paris... Mmmh that may take a while! But if you want to simply cross the Channel between England and France at its narrowest point, the world record is about 7h54 I think, but the average time is about twice as much or 13h.
I'm guessing not as long as it would take for you to swim there.
Rio Grande river is 1,885 mi (3,000 km) long.
Yes, "swim" does have a long vowel sound. The "i" in "swim" is pronounced as a long "i" sound, as in "ice" or "time."
they swim across river such as Mara river that separate Tanzania and Kenya, over 3 million wildebeest swim across the river every year.
Some species of kangaroos would be capable of jumping over a narrow river at full flight, but they would be more likely to swim the river.
Yes people can swim in the Congo River. The people that live near the Congo river use it as transportation and for food.