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3 years ago

Every year _______ species go extinct. a. 3 b. 72 c. 1000 d. 20000

2 answers:

7 0

Well, the thing is: we don't really know, as we don't even know how many species there are on earth.

If we take a look at the estimates of <span>World Wide Fund for Nature, an organization that works toward combating species extinction, their estimates vary from 200 to 100 000 - but a probable number is 20 000 (d). </span>
<span />

schepotkina [342]3 years ago

6 0

Answer:

d. 20000

Explanation:

It has been observed that over the years, species have been going extinct due to human reasons such as excessive hunting, environmental factors such as natural disasters, global warming and also due to changes in their genetic makeup or a reduced reproduction.

It has been estimated that every year 20,000 species are going extinct.

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Who is wwe universal champion

mina [271]

Answer:

Roman reigns

Explanation:

is the wwe universal hampion

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3 years ago

Diya visited a tailor shop and bought home three cuttings of fabric A,B and C to study their properties. Diya tried burning the

andreev551 [17]

Answer:

Rayon

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Explanation:

Rayon

This is Fabric A. Rayon basically burns very quickly even quicker than fabrics like cotton and linen. Its ash is gray in color. The rayon fabric smells of burning paper when it is burnt.

Wool:

This is Fabric B. Wool is basically hard to ignite. It burns slowly. Its ash is dark in color. The wool fabric smells of burning hair when it is burnt.

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3 years ago

An ideal gas is confined within a closed cylinder at atmospheric pressure (1.013 * 105 Pa) by a piston. The piston moves until t

likoan [24]

Answer:

$911700\ \text{Pa}$

Explanation:

$P_1$ = Initial pressure = $1.013\times 10^5\ \text{Pa}$

$V_1$ = Initial volume

$V_2$ = Final volume = $\dfrac{V_1}{9}\\\Rightarrow \dfrac{V_1}{V_2}=9$

Temperature is the same in the initial and final state

From the ideal gas law we have

$P_1V_1=P_2V_2\\\Rightarrow P_2=\dfrac{P_1V_1}{V_2}\\\Rightarrow P_2=P_1\times9\\\Rightarrow P_2=1.013\times 10^5\times 9\\\Rightarrow P_2=911700\ \text{Pa}$

The final pressure of the system is $911700\ \text{Pa}$ .

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3 years ago

The___ if a gas can affect the pressure of a gas

sergejj [24]

I think it’s D I am sorry if I am wrong

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3 years ago

John rode 3,150 m at an average speed of 350 m/min. If he

Vikentia [17]

Answer:

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Explanation:

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2 years ago