The temperature at the inner core is about…….
a) 2,550°C
b) 5000°C
c) 3,700°C
d) 6,300°C
(Geography 7th class book 4,300°C)
The inner core of the Earth is made up of……..
a) copper
b) iron
c) nickel-iron alloy
d) platinum
Thickness of outer core of earth is about……
a) 1520km
b)1600km
c) 2250km
d) 1400km
The outer core of the Earth is made up of……
a) nickel-iron alloy
b) platinum
c) copper
d) iron
The temperature at the outer core is about…….
a) 2,550°C
b) 4,300°C
c) 3,700°C
d) 3,300°C
Water:
About how many percent of water is frozen in the form of glaciers?
a) 2%
b) 4%
c) 8%
d) 13%
