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Aleksandr-060686 [28]
3 years ago
6

Which statements about freshwater sources are true? Check all that apply. B Only about 3 percent of Earth's water is fresh water

Most of the fresh water on Earth is groundwater. About 75 percent of the fresh water on Earth is frozen in ice sheets. The largest source of usable fresh water is groundwater. More fresh water is in the atmosphere than in rivers and lakes. ​
Biology
2 answers:
iragen [17]3 years ago
5 0

Answer:

groundwater is correct

Shkiper50 [21]3 years ago
3 0

Answer:

all but 3 percent

Explanation:

because i looked it up

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The slower an object moves the more kinetic energy it has.<br><br> True<br><br> False
Lady_Fox [76]
False , because its backwards 

There will be more energy 'locked away' in a massive lorry that is moving at 20 m/s than in a motorbike travelling at the same speed.



Also the faster it goes the more kinetic energy the lorry will have.

A lorry moving at high speed will have much more kinetic energy than a lorry moving at low speed.

Therefore a fast moving car or lorry will cause more damage in an accident than a slow moving one because this kinetic energy has to be turned into other forms including sound, heat and stress on the other vehicles.

The kinetic energy of an object therefore depends on two things:
(a) the mass of the object (m)
(b) its speed (v)

The formula for kinetic energy of an object of mass m travelling at speed v is:


<span>Kinetic energy (k.e) = 練v<span>2</span></span>
5 0
3 years ago
Read 2 more answers
5.21 Unit Test: Water and Oceans - Part 1
nikitadnepr [17]

Answer:

Surface currents that move in a path similar to the wind currents

Explanation:

One of the reasons of the movement of the surface of the oceans is the force of the blowing wind. When there is a movement of wind over the surface of the ocean, the surface friction is created. Because of this there is an energy transfer between the force of the wind and the surface of the ocean water. This results in the creation of roughness of the surface of the ocean. The more the surface area of the ocean, the more is the transfer of the energy.

3 0
2 years ago
HELP ASAP WILL MARK BRAINLEST
otez555 [7]
Crude oil: Through drilling wells

Coal: Through surface and underground mining

Natural gas: Through hydraulic fracturing
6 0
3 years ago
Why does evolution have to with change over time?
Naddik [55]
Evolution is the change in an animal over time. Evolution causes this one animal to branch out into many different species of animals.
How evolution starts- There is a mutation in the genes of one animal. If the mutation helps the animal, than the animal breeds and passes on this mutation. This is natural selection. Natural selection is the starting point of evolution because all of the helpful mutations get passed down to change the species over time for the animals' benefit.
I really hope this helps you
6 0
3 years ago
Albinism is inherited as autosomal recessive trait. The frequency of the disease in the population equals to 1:20 000. Calculate
prisoha [69]

Answer:

0.0139- frequency of heterozygotes in the population

Explanation:

Let q to the power of 2 represents the frequency of the homozygous recessive (aa) = 1/20000 = 0.00005

This, q = √q^2 = √0.00005 = 0.007

Since p + q = 1

p = 1 - 0.007 = 0.993

Using the formula: p^2 + 2pq + q^2

Where 2pq represents the frequency of the heterozygotes, thing we have

2 x 0.007 x 0.993

= 0.0139

8 0
2 years ago
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