Answer:
true
Explanation:
When your eyes are not covered and you are in an area with good lighting, then opening your eyes would certainly be a necessary thing to do to be able to see and this makes your vision to be normal.
According to Leo Gross, you can have a normal vision if you are 20 feet away from a particular spot and you see what a normal person sees on that same spot. There is the Snellen chart one is also expected to read in that position, so maintaining a normal vision means someone has 20/20 vision.
Because tropical levels used to be broken because temperatures hasn't varied in the years and history of global temperatures and history.
Explanation:
first of all our eyes recognise to train and send the message to our brain then our ears and then the brain send motor impulses to muscles of leg