What on earth?:D
The prime meridian is named after this place, where the Royal Observatory is located.
Greenwich
他发明了地动仪和浑天仪
张衡
The largest desert in the world (excluding Antarctica)
The largest lake in the world
Caspian Sea
The symptoms of this common illness include severe headache, nausea, and vomiting.
Migraine
The most abundant element in air
Nitrogen
He found that the earth orbits around the sun.
Nicolaus Copernicus
This country has the most elongated shape of all countries.
Chile
A shallow body of water separated from a larger body of water by a barrier is called:
lagoon
This sleep disorder can cause a sudden total loss of muscle control.
Narcolepsy
The length of the earth's equator.
40,000 km
他是历史上第一个把 Pi 的值计算到3.1415926与3.1415927之间的人。
祖冲之
This canal connects the Pacific and Atlantic Oceans
The Panama Canal
This lake has more freshwater than any other water bodies on earth.
Lake Baikal
The flag indicating that a ship is under quarantine has these two colors.
yellow and black
The distance between the earth and the moon.
380,000 km
The first source of non-organic power harnessed by mankind is
Steam power
This part of the UK is not on the island of Great Britain.
Northern Ireland
This lake is the largest freshwater lake on earth.
Lake Superior
This part of the human brain controls the automatic functions of the human body.
brain stem
Hydraulic fracturing can harvest gas and oil from this rock formation in the earth's crust.
shale
He invented the petroleum-based automobile.
Karl Benz
This country is the largest among the Gulf Countries.
Saudi Arabia
The percentage of freshwater in all the water on earth
2.5%
The deficiency of this nutrient will cause the disease of scurvy.
Vitamin C