AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the energy source for the water cycle?
A
the sun
B
the earth
C
water
D
the moon
Explanation: 

Detailed explanation-1: -The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go-energy, or heat.

Detailed explanation-2: -When energy from the Sun reaches the Earth, it warms the atmosphere, land, and ocean and evaporates water. The movement of water from the ocean to the atmosphere to the land and back to the ocean-the water cycle-is fueled by energy from the Sun.

Detailed explanation-3: -Solar energy is created by nuclear fusion that takes place in the sun. Fusion occurs when protons of hydrogen atoms violently collide in the sun’s core and fuse to create a helium atom. This process, known as a PP (proton-proton) chain reaction, emits an enormous amount of energy.

Detailed explanation-4: -Energy from the sun causes water on the surface to evaporate into water vapor – a gas. This invisible vapor rises into the atmosphere, where the air is colder, and condenses into clouds.

There is 1 question to complete.