Earth questions This is a list of recently added questions about Earth. What part of the Earth's surface is dry land?29,2%. It is currenlty 29.2% - but it may decrease in the near future due to global warming and sea level rise.Created by: Krzysztof Moskalhard 56% 29,2%29,2%231933,6%33,6%106838,4%38,4%44642,1%42,1%249water riddles » If Earth's radius was larger by 1 meter, how much longer would its equator be?By approx 6 meters. For each circle, the length of the circumference is c=2πr. Hence, if a radius grows by 1 meter, the circumference grows by 2 π meters - no matter what the initial value of radius was.Created by: SpikeMehard 44% by approx 6 metersby approx 6 meters6597by approx 6 kilometersby approx 6 kilometers2548by approx 60 kilometersby approx 60 kilometers3122by approx 6000 kilometersby approx 6000 kilometers2507math riddles » In which month is the Earth closest to the Sun?In January. Earth's perihelion occurs around January 3, and the aphelion around July 4. The distance change is about 3.5%, which gives 6.9% increase in solar energy reaching the Earth at perihelion relative to aphelion. Since the southern hemisphere is tilted toward the perihelion, the southern hemisphere receives more energy from the Sun than does the northern over the course of a year. Created by: globalquiz.orghard 46% in Januaryin January4346in Marchin March610in Junein June2932there is no differencethere is no difference1371Sun riddles » After what is the Jurassic period named?A mountain range in Switzerland. The Jurassic period is named for the Jura Mountains in between France and Switzerland, where many fossils have been found.Created by: MarcusXhard 50% a type of ancient lizarda type of ancient lizard933a mountain range in Switzerlanda mountain range in Switzerland3869a type of coal formed in that perioda type of coal formed in that period1175Latin for 'before mammals'Latin for 'before mammals'1672Switzerland riddles » Why is the ozone hole dangerous?It increases UV radiation. In the ozone layer, ozone molecules absorb UV-B and UV-C radiation - short wavelength forms of ultraviolet that can disrupt organic molecules, producing cancerous changes in living cells.Created by: Riho Ishiieasy 70% it speeds up the global warmingit speeds up the global warming1575it increases UV radiationit increases UV radiation5277it depletes the oxygen (O2)it depletes the oxygen (O2)395it disturbs Earth's magnetic fieldit disturbs Earth's magnetic field241ecology riddles » What is the most common element (by mass) forming the planet Earth?Iron is most abundant in the Earth's outer and inner core, and it is the fourth most common element in the Earth's crust.Created by: globalquiz.orgvery hard 31% carboncarbon1740oxygenoxygen1257ironiron1964siliconsilicon1334elements riddles » Play geology quiz and see all the questions.