What shape is Earth commonly described as?

Oblate spheroid

Which experiment involved three poles placed 5 km apart to demonstrate Earth's curvature?

Bedford Level Experiment

True or False: The Pole Star appears at the same angle overhead regardless of your location on Earth.

False. The angle of the Pole Star decreases as one moves south.

Riddle: I am the only natural satellite of Earth, orbiting around it. What am I?

The Moon

Fill in the blank: The distance from Earth to the Sun is approximately ______ million km.

150

Which philosopher made an early attempt to measure Earth's circumference?

Eratosthenes

What phenomenon occurs when Earth passes between the Sun and Moon?

Lunar Eclipse

Fill in the blank: Earth's thick atmosphere contains 21% ______.

Oxygen

What is the average temperature of Earth, supporting life?

17°C

Which term describes the ideal distance between Earth and the Sun that supports life?

Optimum Distance

Riddle: I cover 71% of a planet's surface and give it a blue appearance. What am I?

Water

Which of the following supports the idea of a spherical Earth? A) Circular Horizon B) Flat Horizon C) Both A and B D) None of the Above

A) Circular Horizon

What happens to shadows cast by sticks in different locations on Earth?

They vary in length and angle.

True or False: Satellite pictures taken from space show a flat Earth.

False. Satellite pictures clearly show Earth's curved surface.

What journey did Ferdinand Magellan undertake that confirmed Earth's spherical shape?

Circumnavigation

Which layer of Earth's atmosphere protects life by absorbing ultraviolet rays?

Ozone Layer

What is the primary reason for varying time zones across different regions on Earth?

Uneven distribution of sunlight