Which situation is an example of transferring heat by means of convection?
a. the sun warming the earth
b. the weather patterns outside
c. you toasty-warm in some footy pajamas
d. you accidentally grabbing the hot pan from the oven

b. the weather patterns outside

Explanation:

There are three modes of heat transfer:

1. Conduction: This type of heat transfer happens when there is direct contact between the two object.

2. Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas).

3. Radiation: This type of heat transfer happens when there is direct transfer of energy through space.

a. The sun warming the earth  is through radiation as there is no direct contact.

b. The weather patterns outside  are created due to the convection currents which arises due to movement of hot fluid upwards due to less density and the cold fluid downwards due to more density.

c. You toasty-warm in some footy pajamas  is an example of conduction as there is direct contact.

d. You accidentally grabbing the hot pan from the oven is an example of conduction as there is direct contact.

technology is the collection of techniques, skills, methods, and processes used in the the merriam-webster learner's dictionary offers a definition of the term: "the use of moreover, these technologies have become so complex that entire fields more recently, modern works of science fiction such as those by philip k.

explanation:

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)