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SashulF [63]
3 years ago
8

I will give you BRAINLIEST for the correct answer

Geography
1 answer:
n200080 [17]3 years ago
7 0

D. Two organisms that are classified within the same genus, but different species

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What supplies energy for natural processes on earth?
ss7ja [257]

Answer:

<u>Renewable Sources of Energy </u>

Solar energy comes from the sun

Wind turbines, which look like giant windmills, generate electricity.

Geothermal energy comes from the Earth's crust. ...

Biomass includes natural products such as wood, manure and corn. ...

Dams and rivers generate hydropower.

Explanation:

any source that is renewable like the ones listed above

3 0
3 years ago
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5. How would the food web in Figure 7 change if the
shusha [124]

Answer:

The rabbit mouse and squirrel wouldn't point to the red foxes due to the fact that the number of red foxes were reduced meaning that there wouldn't be as many kills from them.

Explanation:

6 0
2 years ago
What is one main characteristics of rainforest trees​
Mice21 [21]

The tropical rainforest is a biome with a constant temperature and a high rainfall. The level of humidity and density of the vegetation give the ecosystem a unique water and nutrient cycle. Rainforests around the world are threatened by human expansion.

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3 years ago
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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!!!

7 0
3 years ago
Two major effect of globalisation​
jeka57 [31]

globalization has led to an improvement in standard of living through improved roads and transportation, improved health care, and improved education due to the global expansion of corporations.

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3 years ago
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