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Rzqust [24]
3 years ago
7

Why is the Earth a sphere?

Biology
2 answers:
alexandr402 [8]3 years ago
8 0
Hello My Dear Friend!

 <span>Large bodies of material will naturally become approximately spherical in shape because gravity pulls everything towards the centre of mass, and the best shape for getting all the particles that make up the body (like all the particles of rock and iron the earth is made of) close to the centre is a sphere. It's the lowest energy configuration, and that's what everything strives to be in. 

So, opposing this gravitational force is the ability of the material that makes up the body to support itself. Hence why on the hard surface of the earth, we can still have mountains like the Himalayas - gravity at the surface isn't strong enough to crush these flat. 

The rotation of the earth causes it to assume a slightly squashed shape too, due to centrifugal force, which pushes material outwards - more so at the equator, which is furthest from the axis of rotation. Any rotating object will have some degree of squashing as a result. 
</span>
I Hope my answer has come to your Help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead! :)

(Mark As Brainliest IF Helped!)

-TheOneAboveAll :D
zubka84 [21]3 years ago
3 0

It is a sphere to be precise.

Because of the omnidirectional nature of the gravitational attraction, mass tends to form spheres in the macro scale of planets and similarly massive celestial bodies.

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Hope this helped!!

4 0
3 years ago
As evidenced in the graph, the national average CO concentrations have decreased substantially over the years. All BUT ONE tacti
Gekata [30.6K]

Answer:

Explanation:

Carbon monoxide (CO) is a colourless, non-irritant, odourless and tasteless toxic gas. It is produced by the incomplete combustion of carbonaceous fuels such as wood, petrol, coal, natural gas and kerosene. Its molecular weight is 28.01 g/mol, melting point −205.1 °C, boiling point (at 760 mmHg) −191.5 °C (−312.7 °F), density 1.250 kg/m3 at 0 °C and 1 atm and 1.145 kg/m3 at 25 °C and 1 atm, and relative density (air = 1) 0.967 (1,2). Its solubility in water at 1 atm is 3.54 ml/100 ml at 0 °C, 2.14 ml/100 ml at 25 °C and 1.83 ml/100 ml at 37 °C.

The molecular weight of carbon monoxide is similar to that of air (28.01 vs approximately 29). It mixes freely with air in any proportion and moves with air via bulk transport. It is combustible, may serve as a fuel source and can form explosive mixtures with air. It reacts vigorously with oxygen, acetylene, chlorine, fluorine and nitrous oxide. Carbon monoxide is not detectable by humans either by sight, taste or smell. It is only slightly soluble in water, blood serum and plasma; in the human body, it reacts with haemoglobin to form carboxyhemoglobin (COHb).

The relationship of carbon monoxide exposure and the COHb concentration in blood can be modelled using the differential Coburn-Forster-Kane equation (3), which provides a good approximation to the COHb level at a steady level of inhaled exogenous carbon monoxide.

Conversion factors

At 760 mmHg and 20 °C, 1ppm = 1.165 mg/m3 and 1 mg/m3 = 0.858 ppm; at 25 °C, 1 ppm = 1.145 mg/m3 and 1 mg/m3 = 0.873 ppm.

8 0
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