According to recent research, ice skaters are able to glide smoothly across the ice because
a. ice is constantly subliming to form a layer of water vapor
b. a thin, liquid-like layer of water covers the ice
c. pressure from the skates raises the melting point of ice
d. pressure from the skates lowers the melting point of ice

B. A thin, liquid-like layer of water covers the ice

Explanation:

Hello,

Ice skaters are able to glide smoothly across the ice because a thin, liquid-like layer of water covers the ice, this is achieved due to the environmental conditions which allow the liquid water layer to coexist with the ice. Due to this fact, the liquid-like layer diminishes the friction coefficient between the ice skateboard and the ice allowing the slip to be carried out smoothly.

Best regards.

first one is the correct answer