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 Moskalwater riddles »hard 56% 29,2%29,2%212133,6%33,6%97838,4%38,4%40542,1%42,1%230 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: SpikeMemath riddles »hard 43% by approx 6 metersby approx 6 meters5974by approx 6 kilometersby approx 6 kilometers2376by approx 60 kilometersby approx 60 kilometers2926by approx 6000 kilometersby approx 6000 kilometers2350 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.orgSun riddles »hard 46% in Januaryin January4115in Marchin March586in Junein June2822there is no differencethere is no difference1319 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: Roy ZhuSwitzerland riddles »hard 50% a type of ancient lizarda type of ancient lizard884a mountain range in Switzerlanda mountain range in Switzerland3609a type of coal formed in that perioda type of coal formed in that period1102Latin for 'before mammals'Latin for 'before mammals'1585 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 Ishiiecology riddles »easy 70% it speeds up the global warmingit speeds up the global warming1500it increases UV radiationit increases UV radiation5003it depletes the oxygen (O2)it depletes the oxygen (O2)376it disturbs Earth's magnetic fieldit disturbs Earth's magnetic field234 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.orgelements riddles »very hard 31% carboncarbon1671oxygenoxygen1195ironiron1887siliconsilicon1253 Play geology quiz and see all the questions.