How could the campfire
warm things by conduction and radiation?

The heat can tranfer both directly and through electromagnetic waves.

Explanation:

Explanation:

Radiation is what occurs when energy is transmitted or emission of energy through the space or in the form of waves. This includes: electromagnetic radiation, such as radio waves, microwaves, infrared, visible light, ultraviolet, x-rays, and gamma radiation

Conduction is a a more so physical contact situation but if connection to the ground is made then the heat can transfer into the ground and proceed to spread into a wider vicinity  warming the general area around it in a more physical manner.

i already answered it by 34/s

find the surface area of the sphere to the nearest square unit. use a calculator.

a. 254 in.2

b. 64 in.2

c. 127 in.2

d. 1,018 in.2