Michael and Isabella are working together on an assignment. They must search some illustrations to find an example of heat transfer by convection. Which illustration best represents convection?

A An illustration of heat being transferred by wind
B An illustration of heat being transferred by objects in contact
C An illustration of heat being transferred between rocks
D An illustration of the Sun’s heat moving through empty space

A. An illustration of heat being transferred by wind

Explanation:

Convection: When a fluid, such as air (wind) or a liquid, is heated and then travels away from the source, it carries the thermal energy along. This type of heat transfer is called convection.

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a.   mass number from atomic number

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force