Universe Exam

Front

What are meteors?

Back

Meteors are small particles from space that burn up upon entering Earth's atmosphere, creating a bright streak of light. They are considered harmless.

Front

Why is Venus called Earth's twin?

Back

Venus is called Earth's twin because it is similar in size and composition to Earth.

Front

What protects us from harmful UV rays?

Back

The ozone layer protects us from Earth's harmful UV rays.

Front

What role do greenhouse gases play in Earth's atmosphere?

Back

Greenhouse gases, like water vapor and carbon dioxide, trap thermal energy in the atmosphere, helping to keep the planet warm.

Front

Which planet is known to support life?

Back

Earth is the only planet known to support life.

Front

What is the ozone layer?

Back

The ozone layer is a region of Earth's stratosphere that contains a high concentration of ozone (O3) and absorbs most of the Sun's harmful ultraviolet radiation.

Front

What are comets?

Back

Comets are icy bodies in space that release gas or dust. They often have a bright tail when they come close to the Sun.

Front

What are asteroids?

Back

Asteroids are rocky objects that orbit the Sun, mostly found in the asteroid belt between Mars and Jupiter.

Front

What is the significance of the greenhouse effect?

Back

The greenhouse effect is crucial for maintaining Earth's temperature, allowing it to support life by trapping heat.

Front

What is the difference between meteors and meteoroids?

Back

Meteoroids are smaller rocks or particles in space, while meteors are the streaks of light produced when meteoroids burn up in Earth's atmosphere.