Our Earth
Considering the layers of the Earth, the temperature in center of the Earth can be:
6500 °C
6800 °C
5000 °C
7300 °C
5000 °C
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The community or collection of the stars is calledA. solar system
B. galaxy
C. planet
D. milky way
The length of one day on planet Mars is:
A. 35 Earth hours
B. 24.6 Earth hours
C. 28 Earth hours
D. 30 Earth hours
The volcanic activity area is classified as:
A. ridge
B. drift
C. crust
D. mantle
The theory which states that pieces of land on the earth surface were joined to each other and separated with the passage of time is classified as:
A. crustal drift theory
B. oceanic drift theory
C. continental drift theory
D. Atlantic drift theory
The percentage of Earth which is covered with oceans is:
A. 65 percent
B. 80 percent
C. 75 percent
D. 85 percent
The larges masses of land are present on the:
A. northern hemisphere
B. southern hemisphere
C. eastern hemisphere
D. western hemisphere
The highest temperature of the planet Mercury (in Celsius) is:
A. 800°
B. 700°
C. 400°
D. 600°
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