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3 years ago

What are the basic differences between the disciplines of physical and historical geology?

1 answer:

5 0

Geology as a science is focused on the study of the structures and functions of the Earth's processes, both in the past and at the present. In here we can make a rough division to physical and historical geology.

The physical geology is concerned with the study of the processes at the present, such as the volcanoes, earthquakes, rock formation, pollution issues etc.

The historical geology, on the other hand, is focused on studying the preserved evidence of the geological processes in the past.

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Which event happened first in earths evolution on the geologic time scale?

BabaBlast [244]

The answer is C A ball of dust, ice, and rock was pulled together by gravity.Oct 10, 2018

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2 years ago

Which statement describes a difference between the state and federal governments under

notsponge [240]

Only the federal government regulates interstate trade

Option D.

<u>Explanation:</u>

The federal government is the central government in the United States of America which is linked with the welfare of the whole country and the state government is linked with the welfare of the people of a particular state only in the country.

Because of the difference in the aims of the two types of the country, the delegation of powers is also different between these types of the government. one of the powers which rests with the central but not with the state government s the regulation of the inter state trade.

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3 years ago

In nuclear fission and fusion reactions mass is converted into energy. The average person in US uses around 100,000,000 J of ene

daser333 [38]

Answer:

a) The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) The energy that would be released if a 60 kg person were converted entirely into energy is $5.4\times 10^{18}$ Joules.

c) 180 years would this amount of energy support a population of 300 million.

Explanation:

a) Average energy consumed by single person of US = 100,000,000 J/year

Then 300 million US citizen will consume:

300 million = 300 × 1,000,000 = $3\times 10^8$

The yearly energy consumption for a US population :

$100,000,000 J/year\times 3\times 10^8=3\times 10^{16} J/year$

The yearly energy consumption for a US population of 300 million is $3\times 10^{16} J/year$

b) $E = m\times c^2$

E = Energy from converted mass of m

c = speed of light

Given mass of person = m = 60 kg

$E=60 kg\times (3\times 10^8 m/s)^2 = 5.4\times 10^{18} J$

c) Energy calculated in part (b) = $E=5.4\times 10^{18} J$

The yearly energy consumption for a US population of 300 million in an year = $3\times 10^{16} J/year$

Let the that would be supported by $5.4\times 10^{18}$ Joules of energy be x.

$x\times 3\times 10^{16} J/year=5.4\times 10^{18} J$

$x=\frac{5.4\times 10^{18} J}{3\times 10^{16} J/year}=180 years$

180 years would this amount of energy support a population of 300 million.

4 0

3 years ago

mixed-phase clouds over the southern ocean as observed from satellite and surface based lidar and radar

sesenic [268]

This is true that mixed-phase clouds over the southern ocean as observed from satellite and surface-based lidar and radar.

A three-phase colloidal system made up of water vapor, ice particles, and coexisting supercooled liquid droplets is represented as mixed-phase clouds. At all latitudes, from the arctic regions to the tropics, mixed-phase clouds are common in the troposphere. Due to their extensive nature, mixed-phase processes are crucial to the radiative energy balance on both a regional and global scale, precipitation generation, cloud electrification, and the life cycle of clouds.

But despite decades of theoretical research and observation, our knowledge and understanding of mixed-phase cloud dynamics are still lacking. The representation of mixed-phase clouds in numerical weather and climate models is famously challenging, and it is still challenging to describe them in theoretical cloud physics.

To know more about mixed-phase cloud refer to: brainly.com/question/8050224

#SPJ4

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1 year ago

Which of the following methods of agriculture is best suited to the use of large plowing and harvesting equipment? a. rangeland

evablogger [386]

<span>The right answer is B - American agriculture is best suited to the use of large plowing and harvesting equipment. American harvesting is so called because it was a system devised by the settlers in America that allowed them to provide large amount of food, making the most of the seemingly unlimited space that they now had access to.</span>

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3 years ago

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