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Marina CMI [18]
3 years ago
15

What is the approximate percentage of geologie time that humans have existed on Earth since its origin?

Advanced Placement (AP)
1 answer:
zloy xaker [14]3 years ago
4 0

Answer:

"Less than 1%" is the right response.

Explanation:

  • Geologists also developed a geological time frame or times scale that is further utilized to divide the earth's history across time measurement (units).
  • Throughout the dynamic stone ground of the planet (earth), the period that represents the vast time (hundreds of thousands of years), is termed as geologic time.

Thus the above is the right response.

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Historia de juyegos populares y tradicionales
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Los juegos capturan las ideas y cosmovisiones de sus culturas y las transmiten a la siguiente generación. Los juegos eran importantes como eventos culturales y sociales, como instrumentos de enseñanza y como marcadores de la condición social. Como pasatiempos de la realeza y la élite, algunos juegos se convirtieron en características comunes de la cultura de la corte y también se daban como regalos. Juegos como Senet y el juego de pelota mesoamericano estaban a menudo imbuidos de significado religioso mítico y ritual. Juegos como Gyan chauper y The Mansion of Happiness fueron usados ​​para enseñar lecciones espirituales y éticas, mientras que Shatranj y Wéiqí (Go) fueron vistos como una forma de desarrollar el pensamiento estratégico y la habilidad mental de la élite política y militar.

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6 0
4 years ago
With a half life of 28.8 years, how long will it take 1g of strontium-90 to decay to 250 mg
soldier1979 [14.2K]

The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years

<h3>What is the half life of an element?</h3>

The formula for half life is;

A(t) = A₀ * (¹/₂)^(t/t_1/2)

Where;

A(t) is amount left after t years

A₀  the initial quantity of the substance that will undergo decay;

t_1/2 is the half-life of the decaying quantity.

We are given;

t_1/2 = 28.8 years

A₀ = 1 g

A(t) = 250 mg = 0.25 g

Thus;

0.25 = 1 *  (¹/₂)^(t/28.8)

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-0.60206 = (t/28.8) * -0.3010

t = 2 * 28.8

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Read more about half life at; brainly.com/question/11152793

6 0
3 years ago
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marshall27 [118]

Answer:

sup

Explanation:

7 0
3 years ago
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Rina8888 [55]

Answer:

<em>I can see that there are no choices, so I'll answer the question according to my understanding.</em>

If unemployment increases during a <em>recession,</em> companies will continue losing<em> revenues</em> and<em> cash</em>. This can lead to a<em> halt</em> <em>of economic growth</em> and may eventually lead to many companies going bankrupt.

Explanation:

"Recession" occurs when the<em><u> spending</u></em><u> of the society declines.</u> This means that the<u> economic activity is also declining.</u> When this happens, companies start<em> laying off workers</em>. Many workers will then lose job. Company spending is also lowered, thereby affecting the economy of the country.

Once unemployment rate increases, people will <em>spend less</em> because they have <u>no money to spend on goods and services. </u>The<em> growth of economy will then stop </em>and companies will go bankrupt.

So, this explains the answer.

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