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ollegr [7]
3 years ago
12

Help anybody please actually answer the question people just comment to get point when they don't didn't even answer the questio

n.
Construct a Solution Suppose you are a landscape contractor, and your client's sloping property is experiencing erosion during heavy rains. The soil is a clay mix and it is exposed. Develop a plan for your client. What steps will best reduce erosion on the property?​
Geography
1 answer:
adelina 88 [10]3 years ago
7 0

Fix the foundation if that does not wrk find a material too help stabilize the soil hope this helps

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Select the correct answer.<br> What effect does eutrophication have on aquatic ecosystems?
iVinArrow [24]

Answer

Accelerates algal growth and reduces oxygen.
Explanation eutrophication is the nutrient induced increase in phytoplankton productivity.

3 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!!!

7 0
3 years ago
Where does the Strong Nuclear Force come into play? (d) What is Cosmology?
nataly862011 [7]

Answer:

The strong nuclear force holds most ordinary matter together because it confines quarks into hadron particles such as the proton and neutron. Cosmology is a branch of astronomy that involves the origin and evolution of the universe, from the Big Bang to today and on into the future.

Explanation:

The strong nuclear force is responsible that protons in the nucleus of the atoms do not repeal each other.

7 0
3 years ago
Please any body help need tomorrow pleaseeeeeeeeee​
kati45 [8]

Answer: Heyo :)

(1) Maybe g oogle that one, im not sure

(2)  march 21: celestial equator; june 21st ;Tropic of Cancer september 23rd; celestial equator; December 23rd: the Tropic of Capricorn

(3) <u>in a leap year, we add an extra day in February </u><u><em>(making it 29 days instead of 28)</em></u><u>. What goes around: The reason we have February 29 every four years is because of two different time cycles involved with the rotation of the Earth.</u>

Explanation:

<em>insp: nightmhares on brain.ly</em>

7 0
2 years ago
An asset is property owned by a person or group true or false
uysha [10]

The answer should be True

7 0
3 years ago
Read 2 more answers
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