complex carbohydrates, such as starches and fiber, provide the body with long-lasting energy.
Hope this helps!
The answer is true. The blowing fan force the hot air to go through the process of convection .
Answer: 
Explanation:
We know that force acting on an object due to Earth's gravity on the surface is given by:

where g is the acceleration due to gravity, r would be radius of Earth, M is the mass of Earth and G is the gravitational constant.
It is given that at pole, g = 9.830 m/s² and r = 6371 km = 6371 × 10³ m



Hence, Earth's mass is 
Mass: the amount of matter an object contains
Weight: mass•acceleration due to gravity(9.8m/s) / the force of gravity acting on an object
The sun creates nuclear energy in it's core and as a byproduct heat is created. It gives this off in the form of heat and radiation.