High School Quiz on Astronomy Of Earth Quiz

Mars is also known as the red planet because of its reddish appearance. This is due to the iron oxide (rust) on its surface, which gives it a distinct reddish color. The planet's reddish hue can be seen even from Earth, making it easily recognizable.

Mercury takes 88 days to revolve around the Sun. This is because Mercury is the closest planet to the Sun and has a shorter orbit compared to the other planets in our solar system. Its close proximity to the Sun results in a faster revolution, completing one orbit in just 88 days.

Mars is not a jovian planet because it is a terrestrial planet, while jovian planets are gas giants. Jovian planets are characterized by their large size, low density, and thick atmospheres primarily composed of hydrogen and helium. Mars, on the other hand, is a rocky planet with a thin atmosphere consisting mainly of carbon dioxide.

The asteroid belt is located between Mars and Jupiter. This region is characterized by numerous small rocky objects called asteroids, which orbit the Sun. The gravitational forces exerted by Mars and Jupiter prevent these asteroids from coalescing into a planet. The belt is approximately 2.2 to 3.2 astronomical units (AU) wide and is a remnant of the early solar system's formation.

Venus is also known as the Morning and Evening star because it is often the brightest object in the sky after the Sun and the Moon. It is visible in the early morning before sunrise or in the evening after sunset, hence the name. This is due to Venus' proximity to Earth and its highly reflective atmosphere, which causes it to shine brightly.

The correct answer is Elliptical. The Milky Way galaxy is a barred spiral galaxy, which means it has a central bar-shaped structure with spiral arms extending from it. However, it is not perfectly round or oval in shape. Instead, it has a slightly elongated, elliptical shape. This shape is common for many galaxies, including the Milky Way.

Phobos and Deimos are satellites of Mars. Satellites are natural or artificial objects that orbit around a planet. In this case, Phobos and Deimos are the two natural satellites of Mars. They were discovered in 1877 by American astronomer Asaph Hall. These moons are relatively small and irregularly shaped. Phobos is the larger of the two, while Deimos is smaller. They are believed to be captured asteroids that were pulled into orbit around Mars.

Titan is a satellite of Saturn. Saturn has numerous moons, and Titan is one of the largest and most well-known among them. It is the second-largest moon in the entire solar system and is known for its thick atmosphere and the presence of lakes and rivers of liquid methane and ethane on its surface. The Cassini-Huygens mission provided valuable data and images of Titan, further confirming its association with Saturn.

Venus and Uranus are the two planets that revolve anti-clockwise around the sun. This means that their orbits are in the opposite direction to the majority of other planets in our solar system. Venus rotates on its axis from east to west, while Uranus has a unique tilt that causes it to rotate on its side. These distinctive characteristics make them the correct answer to the question.

Titan is the largest satellite of our solar system. It is the largest moon of Saturn and the second-largest moon in the entire solar system. It is even larger than the planet Mercury. Titan has a thick atmosphere and is known for its hydrocarbon lakes and rivers, making it an intriguing celestial body for scientific exploration. Its size and unique characteristics make it the correct answer to the question.