Which of the following is a physical model of the sun? a. an equation that describes the sun’s motion b. a chart that lists the temperatures of different parts of the sun c. a computer program that shows how the sun changes over time d. a paragraph that describes the sun’s structure e. a small yellow ball that represents the sun

A. an equation that describes the Sun’s motion: It is mathematical modelling equation for sun

B. a chart that lists the temperatures of different parts of the Sun : It is thermal analysis for sun

C. a computer program that shows how the Sun changes over time : It is software or computer modelling of sun

D. a paragraph that describes the Sun’s structure : It is simple two dimensional representation for sun

E. a small yellow ball that represents the Sun : This is actual physical model for sun. A physical model is one which depicts the actual shape, position, arrangement of any actual thing. Like we can construct a physical model for subatomic particles arrangement on an atom

similarly for sun we can represent it with a small yellow ball which will be called as its physical model.

why is arctic sea ice important? arctic sea ice keeps the polar regions cool and moderate global climate. sea ice has a bright surface; 80 percent of the sunlight that strikes it is reflected back into space. as sea ice melts in the summer, it exposes the dark ocean surface.

the answer would be a