SOLAR SYSTEM

UNIVERSE

PLANETARY FORMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Almost Earth’s twin in size and mass, this planet has very thick atmosphere.
A
Venus
B
Mars
C
Mercury
D
Neptune
Explanation: 

Detailed explanation-1: -Venus is often called “Earth’s twin” because they’re similar in size and structure, but Venus has extreme surface heat and a dense, toxic atmosphere. If the Sun were as tall as a typical front door, Earth and Venus would each be about the size of a nickel.

Detailed explanation-2: -The amount of nitrogen in the atmosphere is relatively small compared to the amount of carbon dioxide, but because the atmosphere is so much thicker than that on Earth, its total nitrogen content is roughly four times higher than Earth’s, even though on Earth nitrogen makes up about 78% of the atmosphere.

Detailed explanation-3: -The clouds that enshroud Venus are enormously thick. The main cloud deck rises from about 48 km (30 miles) in altitude to 68 km (42 miles). In addition, thin hazes exist above and below the main clouds, extending as low as 32 km (20 miles) and as high as 90 km (56 miles) above the surface.

Detailed explanation-4: -Venus has the similar surface acceleration as well as the mass as that of the Earth. It implies that the radius will also be similar for both these planets. Therefore we can conclude that Venus has a similar size as that of the Earth.

Detailed explanation-5: -Venus and Earth are often called twins because they are similar in size, mass, density, composition and gravity.

Detailed explanation-6: -Venus is sometimes called Earth’s twin because Venus and Earth are almost the same size, have about the same mass (they weigh about the same), and have a very similar composition (are made of the same material). They are also neighboring planets.

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