Explanation:
Heat transfer by convection involves gases and liquids as a result of density differences when they are heated.
In the hot air balloon, the air closer to the heater is warmed. This air becomes lighter and it rises. This in turn pushes the balloon up. The cold air away from the heater is denser and begins to sink.
This exchange of hot and cold air sets up convection cells within the balloon and this how heat transfer is attained.
yes
'cause middle east has a lot of people who believe in god
The highest concentration of population are in asia. this could be because of the majority of asia’s lack of education when it comes to sex education.
Both tundra and deserts receive very little precipitation, and it can even happen that some places in a tundra receive more precipitation than some places in a desert! As a result the plants in both tundra and a desert have a waxy coating on leaves. - The correct answer is c.
Answer:
calculate the distance between the 2 points, then multiply by 4 to get the perimeter
d^2 = 2^2 + 7^2 = 4+ 49 = 53 distance squared = sum of the squares of the differences in y values squared plus difference in corresponding x values squared. 7-5 = 2 4--3 = 7 2^2 =4 7^2 = 49
d = sqr53 = about 7.28
Perimeter = 4sqr53 = about 29.12
PLS MARK THE BRAINLIST (❁´◡`❁)
