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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?

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?

Is oxygen spread equally on Earth's surface?

Do winds behave like waves?

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

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

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

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

How did Great-Britain separate from France?

Are all natural diamonds made of organic carbon material?

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

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?

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

What are the natural causes for methane formation?

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

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

What were the geometric coordinates of the Chicxulub impactor 66 million years ago?

What allowed the Himalaya to become so high?

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

Is ice also created ín cold water of the oceans?

Why do modern windmills turn clockwise, but classic mills turn counter-clockwise? [closed]

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

Are clouds needed for lightning?