Answer:The pressure of Mercury = 588,600Pa
Explanation:
The pressure of Mercury is given as
p=h x ρ x g
Where h =height= 20 dm
changing to meters
10 decimeters (dm) =1 meter
20dm =2 meter, 2m
ρ is the density =30000-kg/m³
g , gravity = 9.81-m/s²
Pressure = 2.0m x 30000-kg/m³ x 9.81-m/s²
588,600 kg.m/ s²/m² =588,600 N/m²
The pressure of Mercury=588,600Pa
The order of these periods is the Cretaceous period, Jurassic period, Triassic period, Devonian period, and Cambrian period.
The phrase "Cuddly Old Sheep Dogs Make Perfect Pets; They Just Crowd People Nearby Quietly" is one technique used to organize geological periods. In this phrase, the first letter of each word represents a period.
For example:
- Old starts with "o" and represents the Ordovician period
- Quietly starts with "q" and represents the Quaternary period
- Make starts with "m" and represents the Mississippian period
In this context, the order of the given periods from the most recent to the oldest one is:
- The Cretaceous period "crowd"
- The Jurassic period "just"
- The Triassic period "they"
- The Devonian period "dogs"
- The Cambrian period "cuddly"
Learn more in: brainly.com/question/7277813
Answer:
<em>A. a shooting star:-</em>
<em> Definitely we can't find a shooting star.</em>
<em>B. Extremely high temperatures :-</em>
<em>The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. </em>
<em>C. Clouds:-</em>
<em>As the troposphere is the lowest layer of Earth's atmosphere. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Most types of clouds are found in the troposphere, and almost all weather occurs within this layer. Air gets colder as one rises through the troposphere.Therefore the clouds are present in the troposphere.</em>
<em>D. The ionosphere:-</em>
<em>The of region ionosphere that includes the thermosphere and parts of the mesosphere and exosphere</em>
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<em>Therefore the answer is C. Clouds</em>
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<em>Hope this help's you</em>
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