Yes
easyer
As my answer, it will be easier to walk uphill because force pulls your bike down and you might fall off and walking is easier.
A snail
It depends on your fitness level and the gradient.
The average garden snail moves at a pace of 100 ft an hour.
Yea but all they do is walk pass the snail like nothing happend. they’re not going to hurt a snail but just walk bye.
If you are asking if snails crawl or walk they do neither. They slide on mucus.
Yes, a snail can. This is because the mucus is very elaborate. It's sticky, and sticks to anything actually. Although a snail has no legs and is unable to walk, it can however move along an upside down surface.
550 cal.
depends on how far you walk, are you going uphill, downhill or is it flat? if you walk on a flat area then you will not burn as much as the other two, uphill you will burn the most. all in all you will not burn a lot of calories unless you walk a pretty good distance and even a couple miles of flat land will only burn around 70 calories. a couple miles uphill could burn over 150.
yes, it is good under doctors observation.
As an average 300 m (altitude) in one hour.