Question

compare and Contrast
How is planet Earth similar and different from Venus and Mars? Provide possible explanations for your observations
using the information in the table
VENUS
EARTH
MARS
Mass (1024kg)
4.87
5.97
0.642
Diameter (km)
12,104
12.756
6792
Density (kg/m3)
5243
5514
3933
Gravity (m/s2)
8.9
9.8.
3.7
Escape Velocity (km/s)
10.4
11.2
5
Surface pressure (bars)
92
1
0.01
Composition of atmosphere
96% CO2, 3.5% N | 77%N, 21% O2, 1%Ar 95%CO2, 2.7%N, 1.6%Ar
Major Greenhouse Gases (GHG)
CO2
CO2 H2O
CO2
Mean Temperature (OC)
464
15
-65
Temperature if no greenhouse gases are present
-18
-57
Changes in Temperature (OC) due to greenhouse gases
523
+33
+10
Distance from the Sun (106km)
108.2
149.6
227.9
Orbital Period (days)
224.7
365.2
687
Orbital Velocity (km/s)
35
29.8
24.1
Length of day (hours)
2802
24
24.7
Global Magnetic Field
No
Yes
No
Comparison of the features of Venus, Earth, and Mars (National Aeronautics and Space Administration, 2015)​

Answer 1

Answer:

Venus is often named as Earth's twin because both worlds share a similar size, surface composition and have an atmosphere with a complex weather system. ... Both planets have almost the same size and density and Venus is only a 30% closer to the Sun than

Dr

Answer 2

• The majority of people assume that Earth and Venus are identical. It has a similar radius and diameter. Given the intense heat, it's also possible that Venus is a greenhouse effect gone away. This is because the sun was considerably smaller during the beginning of the solar system, and Venus was in the habitable zone. As the sun became older and bigger, it pushed the zone further away from Earth.
• In many respects, Mars resembles Earth. Its average temperature is -80 degrees, which is very similar to the temperatures of the other planets in our solar system. It features polar ice caps as well as distinct seasons. Because -80 is habitable, life on Mars is a distinct possibility.
• The most significant distinction between Earth and other planets is that Earth has a lot of surface water, which has allowed life to flourish. The atmosphere and temperatures on Earth are suitable for our living forms. Without life support and protection, we would be unable to survive in other worlds.