3 years ago

Biodiversity decline poses a problem in an ecosystem because

1 answer:

3 0

Answer:

Biodiversity decline continues due to a rapidly expanding human population. Habitat is damaged in order to meet growing needs for agriculture, urban development, water and materials. Fish, wildlife and plants are overharvested, despite mounting evidence that many harvesting practices are unsustainable.

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One end of a rope is tied to the handle of a horizontally-oriented and uniform door. a force f is applied to the other end of th

Vlada [557]

For rotational equilibrium of the door we can say that torque due to weight of the door must be counter balanced by the torque of external force

$F\times L = mg \times \frac{L}{2}$

here weight will act at mid point of door so its distance is half of the total distance where force is applied

here we know that

$mg = 145 N$

now we will have

$F = \frac{mg}{2}$

$F = \frac{145}{2} = 72.5 N$

so our applied force is 72.5 N

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3 years ago

If a hypothesis is falsifiable, _____.

san4es73 [151]

Answer:

it must be possible to prove it wrong

Explanation:

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andriy [413]

Answer:

The sun

Explanation:

In this system the energy of the sun heats the water in the pipe, producing a high pressured steam, which is used for moving a turbine and producing electricity, is a transformation of energy from solar to thermal, then to mechanical to electrical.

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3 years ago

When a firecracker explodes, what types of energy does it give off?

fomenos

The answer is c.
Sound, light and heat energy.

Hope this helped :)

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What is the refraction index of a medium?

Sati [7]

<span>the ratio of the velocity of light in the medium over the velocity of light in a vacuum</span>

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