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Marijn
  • Member for 6 years, 6 months
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16 votes
2 answers
9k views

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

14 votes
2 answers
13k views

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

12 votes
5 answers
2k views

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

10 votes
5 answers
5k views

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

10 votes
1 answer
136 views

Does the Earth receive a net charge from the aurorae?

10 votes
2 answers
463 views

Is the Earth heated up by the tides?

10 votes
3 answers
2k views

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

9 votes
7 answers
16k views

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

8 votes
0 answers
81 views

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

8 votes
2 answers
9k views

Is oxygen spread equally on Earth's surface?

8 votes
4 answers
2k views

Do winds behave like waves?

8 votes
2 answers
87 views

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

7 votes
2 answers
1k views

How did Great-Britain separate from France?

7 votes
2 answers
1k views

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

6 votes
4 answers
2k views

Are all natural diamonds made of organic carbon material?

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?

6 votes
1 answer
391 views

At what altitude do winds exert the most force?

6 votes
2 answers
7k views

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

6 votes
1 answer
244 views

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

5 votes
2 answers
394 views

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

4 votes
3 answers
4k views

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

4 votes
2 answers
176 views

What are the natural causes for methane formation?

4 votes
1 answer
205 views

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

3 votes
1 answer
135 views

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

3 votes
3 answers
336 views

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

3 votes
1 answer
55 views

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

3 votes
2 answers
187 views

Is ice also created ín cold water of the oceans?

3 votes
1 answer
1k views

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

3 votes
1 answer
222 views

Are clouds needed for lightning?

3 votes
0 answers
114 views

What is the structure of the hot spot under Hawaii?