Unit 2 Earth and Environmental Science

Front

What is the reason for the four seasons on Earth?

Back

The four seasons are caused by the tilt of the Earth's axis and its revolution around the Sun, leading to unequal heating of the Earth's surface.

Front

How long does it take for the Earth to complete one orbit around the Sun?

Back

One year.

Front

What is the name of the North Star?

Back

Polaris.

Front

During which month does the Earth move fastest in its orbit around the Sun?

Back

January.

Front

Why does the Earth travel fastest in January and slowest in July?

Back

The Earth is nearest the Sun in January and farthest away in July.

Front

What is the Earth's axial tilt?

Back

The Earth's axial tilt is approximately 23.5 degrees, which affects the angle of sunlight received at different latitudes.

Front

What is revolution in the context of Earth and the Sun?

Back

Revolution refers to the Earth's movement around the Sun, taking approximately one year to complete.

Front

What is rotation in the context of Earth?

Back

Rotation is the spinning of the Earth on its axis, which takes about 24 hours to complete and causes day and night.

Front

What is solar radiation?

Back

Solar radiation is the energy emitted by the Sun, which heats the Earth and drives weather and climate.

Front

What is the significance of the equator?

Back

The equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres and is the point of zero degrees latitude.