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PilotLPTM [1.2K]
2 years ago
14

The most common misunderstanding about climate change is that the

Geography
1 answer:
Nataliya [291]2 years ago
6 0

While yes, the earth has changed before, the reason it is changing now is because of greenhouse gases being pushed into the atmosphere by human activity. Also climate change take hundreds of thousands of years by slow process, this is the fastest the climate has ever changed. The last 20 years have had the 19 hottest years in recorded history.

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Cold water of the same source forms lather hardly with soap. Why?<br>​
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Mountain range that runs from russia to kazakhstan.
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Ural Mountains

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The Ural Mountains are a mountain range that runs 2500km from Russia to Kazakhstan

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Where is the production of grapes for producing wine MOST likely to be low?
zepelin [54]

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A largely Muslim area

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i sad this bcoz mostly muslim is a vegan country so grape is lesss there

7 0
2 years ago
Analysis of a rock sample that it contains 6.25% of its original uranium-235. How old is the rock? How do you know?
Andrews [41]

Answer:

The age of the rock = 2800.6 million years = 2.8 billion years.

A simple method of analysis similar to Carbon dating is used to obtain the required age of the rock. Radioactive substances decay according to first order reaction kinetics. So, plugging all the required parameters into the general equation for amount of substance left in a first order decay gives us the age of the rock.

Explanation:

Half life of Uranium-235 = 700 million years (from literature)

The decay of radioactive substances follow first order reaction kinetics.

The general equation is given as

A(t) = A₀ e⁻ᵏᵗ

A(t) = Amount of radioactive substance left after a particular time = 6.25%

A₀ = initial amount of radioactive substance = 100%

t = time that has passed since the beginning = age of the rock = ?

k = decay constant

The decay constant is related to the half life (T) through the relation,

k = (In 2)/T

k = (0.693/700) = 0.00099 /million years

A(t) = A₀ e⁻ᵏᵗ

6.25 = 100 e⁻ᵏᵗ

0.0625 = e⁻ᵏᵗ

In e⁻ᵏᵗ = In 0.0625 = -2.7726

-kt = - 2.7726

t = (2.7726/0.00099) = 2800.6 million years

t = 2.8 billion years.

Hope this Helps!!!

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3 years ago
Years ago, ben wrote an op-ed about climate change stemming from humans’ disregard for the environment. In it, he said that assu
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It is not good because it applies a one-sided strength test. One side Strengths test is a free self-assessment that takes significantly less than 10 mins and presents an abundance of records that will assist you with perceiving your pleasant characteristics.

Submit shortage is a theoretical monetary situation in which most items may be produced in terrific abundance with minimum human labor wished in order that they end up available to all very cost effectively or maybe freely. Put up-shortage does now not suggest that shortage has been eliminated for all items and services, but that all people can without difficulty have their basic survival wishes to be met together with some big percentage in their goals for goods and services. Writers on the subject regularly emphasize that some commodities will stay scarce in a submit-shortage society.

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