Water on Mars is disappearing faster than expected

The video discusses research by France's National Center for Scientific Research on the rapid evaporation of water on Mars. Using data from the Trace Gas Orbiter, scientists found that seasonal changes affect water vapor distribution in Mars's atmosphere. As the sun warms the planet's ice caps, water vapor is released and carried to higher altitudes. During warmer periods, the atmosphere becomes supersaturated with water vapor, allowing it to reach the upper atmosphere. There, ultraviolet rays break down water molecules into hydrogen and oxygen, which escape into space.

What did the French National Center for Scientific Research discover about water on Mars?

• It is turning into ice.

• It is not evaporating at all.

• It is evaporating faster than previously thought.

• It is evaporating slower than expected.

What role does the sun play in the distribution of water vapor on Mars?

• It cools down the ice caps.

• It has no effect on water vapor.

• It freezes the water vapor.

• It warms the ice caps, releasing water vapor.

During the warmest parts of the year, how does Mars's atmosphere change?

• It remains the same.

• It becomes supersaturated with water vapor.

• It loses all water vapor.

• It becomes less saturated with water vapor.

What happens to water molecules when they reach Mars's upper atmosphere?

• They remain unchanged.

• They are broken down by ultraviolet rays.

• They are absorbed by the ground.

• They freeze into ice.

What are the components that escape into space after water molecules are broken down?

• Hydrogen and nitrogen.

• Oxygen and carbon.

• Hydrogen and oxygen.

• Carbon and nitrogen.