Biology College

Which is a step of the convection cycle in Earths atmosphere?

A. Cold, denser air rises.
B. Cold, less dense air falls.
C. Hot, less dense air falls.
D. Hot, less dense air rises.

Answers

Answer 1
d is the correct answer

Answer 2
The answer is Hot, less dense air rises
In the convection cycle, air will rise due to the heat that is displayed by the sun. This makes the cold, denser air started to fall and creating a differential pressure within the atmosphere. This pressure will influence the movement of the air and create a wind.

Related Questions

air pressure on top of a planes wing decreases...
A) as the planes speed decreases
B) because the plane eventually has to land
C) As the plane's speed increases
D) As the plane's fuel runs low

Answers

i belive its c because thats how they go upwards

Answer: Option C.

Explanation:

As the speed of plane increases and it moves forward it allows to push air on the bottom of the wings of the plane which results in increasing the pressure

The fact of air pressure on top of planes wing decreases with the increase bin plane's speed is based on Bernoulli’s Principle which states that with the fast moving air, the pressure decreases.

Therefore,n when the plane moves up it's wing pushes air down and on the same time the air pressure decreases at the top of the wing, this difference between the high and low pressure allows the flight to lift up.

Hence, the correct option is C.

what is difference between virion and viroid (5 to 6 differences are needed)

Answers

Viroid

1. It is an infectious RNA particle 
2. Viroid is formed of only RNA 
3. A protein coat is absent
4. Viroid has a smaller size 5. Viroid infects only plants

Virus

1. It is a nuclearprotein particle
2. Nucleic can be DNA or RNA
3. A protien covering a coat called always present
4. Virus has a larger size
5. Virus infects all types of organism
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