User Marijn

16 votes

2 answers

9k views

Is spectrum of sunlight the same in the summer as in the winter?

asked Mar 16, 2016 at 21:25

14 votes

2 answers

13k views

If the Earth were a smooth spheroid, how deep would the ocean be?

geology ocean world-building

asked Feb 3, 2016 at 18:57

12 votes

5 answers

2k views

Are there water molecules in the oceans which will almost never fall down as rain?

meteorology geophysics ocean

asked Jun 8, 2016 at 10:18

10 votes

5 answers

5k views

Are there minerals which are not been found on earth but which are still possible to exist?

geology geochemistry mineralogy crystallography

asked Sep 30, 2016 at 20:40

10 votes

1 answer

136 views

Does the Earth receive a net charge from the aurorae?

geophysics solar-terrestrial-physics electromagnetism auroras

asked Jan 12, 2017 at 18:58

10 votes

2 answers

463 views

Is the Earth heated up by the tides?

geophysics tides

asked Mar 2, 2017 at 16:48

10 votes

3 answers

2k views

What is the most important source of natural gas? Coal, oil or other?

gas petroleum fossil-fuel coal

asked May 26, 2019 at 9:20

9 votes

7 answers

16k views

Does a mountain top have higher gravity than a nearby sea-level surface?

geophysics

asked Jun 20, 2016 at 20:27

8 votes

0 answers

81 views

Are there any signs on the Earth's surface that indicate a shrinking iron core? [duplicate]

geophysics core crust iron

asked Feb 8, 2017 at 16:13

8 votes

2 answers

9k views

Is oxygen spread equally on Earth's surface?

atmosphere atmospheric-chemistry oxygen

asked Nov 6, 2016 at 12:32

8 votes

4 answers

2k views

Do winds behave like waves?

meteorology

asked Jul 14, 2016 at 13:10

8 votes

2 answers

87 views

Are there any effects on the atmosphere comparable with ebb and flood of the oceans?

atmosphere

asked Jun 7, 2017 at 8:16

7 votes

2 answers

1k views

How did Great-Britain separate from France?

geophysics

asked Aug 24, 2016 at 19:09

7 votes

2 answers

1k views

Why is at high altitude more light from oxygen in the auroras while it is heavier than nitrogen?

atmosphere upper-atmosphere auroras

asked Feb 1, 2016 at 20:40

6 votes

4 answers

2k views

Are all natural diamonds made of organic carbon material?

geochemistry sedimentology carbon-cycle mantle diamond

asked Feb 8, 2016 at 10:33

6 votes

2 answers

545 views

How much does the electric current within the Earth' core depend on the axis of the Earth's orbit?

geophysics

asked Oct 13, 2016 at 8:37

6 votes

1 answer

391 views

At what altitude do winds exert the most force?

atmosphere

asked Jan 24, 2017 at 20:26

6 votes

2 answers

7k views

How much and what kind of radiation passes through a cloud?

meteorology atmosphere atmospheric-radiation

asked Jul 5, 2016 at 19:00

6 votes

1 answer

244 views

Why is cold air fast in an occluded front, but slow in an anti-cyclone?

meteorology

asked Dec 28, 2017 at 19:44

5 votes

2 answers

394 views

Does subduction of plates make them stretch and form the oceans?

geology oceanography

asked Feb 21, 2017 at 16:22

4 votes

3 answers

4k views

Where does all the salt come from in the Dead Sea?

water salinity

asked Jun 29, 2016 at 15:35

4 votes

2 answers

176 views

What are the natural causes for methane formation?

geochemistry biogeochemistry petroleum methane

asked Feb 1, 2016 at 18:59

4 votes

1 answer

205 views

How much energy is released a year of all the lightning on earth?

meteorology

asked Jun 23, 2016 at 14:25

3 votes

1 answer

135 views

Do our continents lay on the mantle because solid silicon dioxide is less dense than its liquid form?

geology geophysics

asked Jun 24, 2016 at 14:05

3 votes

3 answers

336 views

How probable is is that earth magnetic field will change 180 degrees at once?

geophysics geomagnetism

asked Feb 2, 2016 at 11:54

3 votes

1 answer

55 views

Is there an estimation how much organic matter there is still in the ground?

geology economic-geology resources

asked Feb 1, 2016 at 19:07

3 votes

2 answers

187 views

Is ice also created ín cold water of the oceans?

ocean water sea-ice

asked Jul 1, 2016 at 13:18

3 votes

1 answer

1k views

Is there more water in solid form than in liquid form on earth?

water

asked Jun 28, 2016 at 14:09

3 votes

1 answer

222 views

Are clouds needed for lightning?

meteorology lightning

asked Jun 29, 2016 at 13:40

3 votes

0 answers

114 views

What is the structure of the hot spot under Hawaii?

mantle mantle-plumes hotspot

asked Feb 12, 2017 at 11:52

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47 Questions

Is spectrum of sunlight the same in the summer as in the winter?

If the Earth were a smooth spheroid, how deep would the ocean be?

Are there water molecules in the oceans which will almost never fall down as rain?

Are there minerals which are not been found on earth but which are still possible to exist?

Does the Earth receive a net charge from the aurorae?

Is the Earth heated up by the tides?

What is the most important source of natural gas? Coal, oil or other?

Does a mountain top have higher gravity than a nearby sea-level surface?

Are there any signs on the Earth's surface that indicate a shrinking iron core? [duplicate]

Is oxygen spread equally on Earth's surface?

Do winds behave like waves?

Are there any effects on the atmosphere comparable with ebb and flood of the oceans?

How did Great-Britain separate from France?

Why is at high altitude more light from oxygen in the auroras while it is heavier than nitrogen?

Are all natural diamonds made of organic carbon material?

How much does the electric current within the Earth' core depend on the axis of the Earth's orbit?

At what altitude do winds exert the most force?

How much and what kind of radiation passes through a cloud?

Why is cold air fast in an occluded front, but slow in an anti-cyclone?

Does subduction of plates make them stretch and form the oceans?

Where does all the salt come from in the Dead Sea?

What are the natural causes for methane formation?

How much energy is released a year of all the lightning on earth?

Do our continents lay on the mantle because solid silicon dioxide is less dense than its liquid form?

How probable is is that earth magnetic field will change 180 degrees at once?

Is there an estimation how much organic matter there is still in the ground?

Is ice also created ín cold water of the oceans?

Is there more water in solid form than in liquid form on earth?

Are clouds needed for lightning?

What is the structure of the hot spot under Hawaii?