which of the following features make earth and venus similar to each other ?
A . their size and mass
b. their rates of rotation
c. their atmospheres
d. their directions of rotation****
NO !
mass of earth = 5.98 * 10^24 kg
Venus 4.82 * 10^24
radius of earth = 6.38 * 10^6 m
Venus 6.31 * 10^6
for comparison:
Jupiter mass = 1.89*10^27 kg
and r = 7.18*10^7 m
To determine which features make Earth and Venus similar to each other, we need to analyze the given options:
A. Their size and mass: Both Earth and Venus are similar in terms of their size and mass. Earth is slightly larger in size and mass compared to Venus, but they are considered relatively similar.
B. Their rates of rotation: Earth and Venus have different rates of rotation. Earth rotates once every 24 hours (approximately), while Venus has an extremely slow rotation, taking about 243 Earth days to complete one rotation. Therefore, their rates of rotation are not similar.
C. Their atmospheres: Earth and Venus do have some similarity in their atmospheres. Both planets have a predominantly carbon dioxide atmosphere, with traces of nitrogen and other gases. However, Venus has an extremely thick and hostile atmosphere, with a significant greenhouse effect that traps heat, leading to extreme temperatures.
D. Their directions of rotation: Earth and Venus have opposite directions of rotation. Earth rotates counterclockwise when viewed from above the North Pole, while Venus rotates clockwise. Therefore, their directions of rotation are not similar.
Based on the above analysis, the correct answer would be option D, as their directions of rotation are indeed similar.