The term "albedo" is used to describe the amount of radiation a surface reflects, this is also related to how fast a surface increases its temperature. In general terms, the lighter the surface is the most albedo it has as dark/black bodies absorb all radiation. For example, white snow has an albedo of 80% while dark wet soil has radiation of 10%; also, in the case of water, this has a low albedo (around 10%). According to this, the substance that has a high albedo is white sand as this is a light surface and therefore it is expected it reflects most of the radiation it receives, around 50% (or even more) albedo.
The albedo is the amount of energy that is reflected by a surface. It is determined by the refletivity of that surface. Albedo can range from 0 (no reflection) to a value of 1 (100% reflection). Generally, dark surfaces have a low albedo and light surfaces have a high albedo. Liquid water is considered to have a low albedo, like dark rock and rich soil.
<span>she opens her eyes but does not answer any questions.
This is because she is suffering from dementia. She does not know what to do in your shoes anymore because she lost her humantiy.</span>