EVERYDAY SCIENCE

SCIENCE

EARTH SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about the Earth’s axis, the Earth’s revolution around the Sun, and the seasons?
A
Changes in the direction of the Earth’s axis cause the seasons
B
The Earth’s axis keeps pointing in the same direction, and as Earth travels around the Sun, the angle between the axis and the Sun changes, causing the seasons.
C
Seasons are caused by the Earth’s elliptical orbit and its being closer to the Sun in January than it is in July
D
Seasons are caused by the position of the moon relative to the Sun
Explanation: 

Detailed explanation-1: -Earth’s axial tilt (also known as the obliquity of the ecliptic) is about 23.5 degrees. Due to this axial tilt, the sun shines on different latitudes at different angles throughout the year. This causes the seasons. Uranus has the largest axial tilt in the solar system.

Detailed explanation-2: -Earth’s rotation on its axis occurs every 24 hours. Earth is always moving. Each day, the Earth makes one complete rotation on its axis. The axis is the imaginary line through the earth that extends from the North Pole to the South Pole.

Detailed explanation-3: -It orbits the Sun every 365 and one-quarter days. It spins on an axis that is tilted 23 and a half degrees to the plane of its orbit. This axial tilt remains steady throughout the year. Depending on the time of year, some parts of the Earth are tilted more toward the direct rays of the Sun than others.

Detailed explanation-4: -As Earth orbits the Sun, its tilted axis always points in the same direction. So, throughout the year, different parts of Earth get the Sun’s direct rays. Sometimes it is the North Pole tilting toward the Sun (around June) and sometimes it is the South Pole tilting toward the Sun (around December).

There is 1 question to complete.