Olympiad Test Level 1: Earth and Universe- 2 - Class 4 MCQ

The correct ascending order of distance of planets from the Sun is Earth, Mars, Jupiter, and Saturn. The planets are arranged based on their distance from the Sun, with Earth being the third planet, Mars the fourth, Jupiter the fifth, and Saturn the sixth.

All of the planets listed—Jupiter, Saturn, and Uranus—have rings around them. Saturn's rings are the most famous and easily visible, but Jupiter and Uranus also have faint rings made of dust and ice particles. These rings are not solid and are made up of small rocks and debris.

Mars is called the "Red Planet" due to its reddish appearance, which is caused by iron oxide (rust) on its surface. This gives it a distinct color when viewed from space or Earth.

The Earth completes one revolution around the Sun in one year. This takes approximately 365.25 days, which is why we have a leap year every four years to account for the extra 0.25 days.

Earth is the only planet known to have life. It has the right conditions, such as water, oxygen, and a suitable atmosphere, to support a wide range of life forms. None of the other planets have been found to support life as we know it.

The Earth rotates from West to East. This rotation causes the Sun to appear to rise in the East and set in the West. The Earth's rotation is also responsible for the cycle of day and night.

The Earth is called Watery Planet because its surface is covered by water (liquid and solid state both).

The moon is the only natural satellite of the Earth. It is the fifth largest moon of the solar system.

Venus is the brightest planet in our solar system because sunlight is reflected by the acidic clouds in the atmosphere of Venus.

Earth is known as the "Blue Planet" because of the large amount of water on its surface, which gives it a blue appearance when viewed from space. The oceans, seas, and lakes cover most of the Earth's surface.

Mercury is the only planet in the solar system that has no natural satellites (moons). Unlike other planets such as Earth, Jupiter, and Saturn, Mercury does not have any moons orbiting it.

"Wave, short days, and long nights" are characteristic of winters. During winter, the days are shorter, and the nights are longer due to the tilt of the Earth's axis. The weather is often colder, and some regions may experience snowfall or chilly winds.

The Pole Star, also known as Polaris, is not a part of our solar system. It is a star located outside our solar system. Earth, Moon, and Jupiter, on the other hand, are all part of the Solar System.

Venus is called the "Evening Star" because it is bright and can be seen in the sky after the Sun sets. It is one of the brightest objects in the sky and sometimes appears in the morning as well, earning it the name "Morning Star."

1. Uranus is the coldest planet in all the eight planets.
2. Most of its mass is a hot, very dense fluid of icy materials like water, methane and ammonia above a small rocky core.
3. Uranus is an ice giant. It holds the record for the coldest temperature ever measured in the Solar System about -224°C.