Community Digest

Top new questions this week:

(Fósil hallado en Zapala, Neuquén) Fossil found in Zapala, Neuquén, Argentina

(Alguien podría decirme qué es?) Could someone tell me what it is? Zapala is in Western Argentina, east of the Andes Mountains. enter image description here English translation via Google Translate

paleontology fossils identification-request  
user avatar asked by Cristian Score of 1

Need help to understand definitions in Box 7.1 (Forcing and Response) in IPCC 2021

I'm trying to understand Box 7.1 "The Energy Budget Framework: Forcing and Response" in the IPCC 2021 document. The link is https://www.ipcc.ch/report/ar6/wg1/chapter/chapter-7/ . $N(x_{1},...

climate-change  
user avatar asked by Stephen Blake Score of 1

Greatest hits from previous weeks:

Why is the pond in my backyard not frozen when it is -15 °C (5 °F) outside?

I am in O'Fallon, Missouri and today it is -15 °C (5 °F) outside. I was taught water freezes at 0 °C (32 °F). I could understand if it was exactly 0 °C (32 °F) that the water might not be turning to ...

geophysics temperature water ice thermodynamics  
user avatar asked by Seth Kitchen Score of 50
user avatar answered by casey Score of 53

At what humidity does it start to rain?

As far as I understand it is perfectly valid for air to have 100% humidity. At that point, all water can still exist in form of vapor, non-condensed. Does it immediately start to rain if humidity is >...

meteorology humidity rainfall  
user avatar asked by Thomas Weller Score of 30
user avatar answered by casey Score of 28

What is the percentage of the global water cycle (evaporation, precipitation) that occurs over the ocean?

Most of the water cycle studies focus on the processes and changes occurring over land with little emphasis on the ocean. Meanwhile, the ocean covers almost 3/4 of the surface of Earth. How much of ...

ocean precipitation  
user avatar asked by arkaia Score of 17
user avatar answered by DrewP84 Score of 14

Is oxygen the most abundant element on Earth?

When I was in school, I was taught that we need oxygen to breathe, but it actually constitutes only a small fraction of the atmospheric composition, and that nitrogen constituted the largest fraction ...

atmosphere geochemistry nitrogen oxygen  
user avatar asked by Matthew Layton Score of 9
user avatar answered by bon Score of 12

How is the mass of the Earth determined?

According to textbook knowledge, the mass of the earth is about $6 × 10^{24}\,\mathrm{kg}$. How is this number determined when one cannot just weight the earth using regular scales?

geophysics geology  
user avatar asked by Kenshin Score of 47
user avatar answered by Mr_Green Score of 44

Are the processes of the rock cycle currently in dynamic equilibrium?

The standard representation of the rock cycle usually looks like this: Does each stage of the rock cycle currently balance? That is, are the various processes in dynamic equilibrium, so that the ...

geology rocks petrology geodynamics  
user avatar asked by Poomrokc The 3years Score of 16
user avatar answered by Pont Score of 18

Is the continent with Australia in it Oceania or Australia?

I am making a quiz and I want to know whether Australia or Oceania is the continent? I have searched it on Google but I can't find an answer.

continent  
user avatar asked by dferdo_04 Score of 5
user avatar answered by user2821 Score of 4
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