If a blind person can't see how do they know what they are touching and do they know if the person they are talking to is a boy or girl

t o u c h LOLOLO

Explanation:

po dotyku i słuchu...

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )