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2 years ago

Which of the following pollutants is NOT created by fossil fuels?

Geography

2 answers:

ratelena [41]2 years ago

6 0

The answer is B. phosphodioxide. It is not a pollutant of fossil fuels.

tangare [24]2 years ago

5 0

Answer:

sulphur dioxide

Explanation:

i dunno , i just guessed

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France’s most economically successful colony in the Americas was __________.

Yakvenalex [24]

Frances most succesful colony was canada

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3 years ago

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How much of the protein consumed by humans around the world is fish?

kirza4 [7]

Answer:

20%

Explanation:

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2 years ago

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In desert climates, the days are very hot and nights very cold. this is mainly because _____. there are rarely any clouds in the

Whitepunk [10]

Answer:

mostly because the desert is dry

Explanation:

and its not humid

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1 year ago

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Which solid has an infinite number of planes of symmetry?

timurjin [86]

Answer:

A solid hollow cylinder has an "infinite number of planes of symmetry".

Explanation:

Two or more faces are said to be symmetric when they have the same dimensions and are geometrically identical.

When these faces are placed in a setting with 'X', 'Y' and 'Z' axes "perpendicular to each other", they make a plane with three lines of symmetry. A circle has "infinite lines of symmetry".

Thus, a cylinder with two openings has an "infinite number" of "planes of symmetry".

6 0

2 years ago

The radius of the cone id 1.75 inches an the height id 3.5 inches. If the diameter of the bubble gum ball is 0.5 inches what is

Olegator [25]

Answer: $11.15 in^{3}$

Explanation:

We need to know the volume of the cone that can be filled with bubble gum ball, but firstly we need to calculate the volume of the cone $V_{C}$ and the volume of the buble gum ball (a sphere) $V_{B}$ :

Volume of the cone:

$V_{C}=\frac{\pi R^{2}h}{3}$ (1)

Where:

$R=1.75 in$ is the radius of the cone

$h=3.5 in$ is the height of the cone

$V_{C}=\frac{\pi (1.75 in)^{2}3.5 in}{3}$ (2)

$V_{C}=11.22 in^{3}$ (3) This is the volume of the cone

Volume of the gum ball:

$V_{B}=\frac{4\pi r^{3}}{3}$ (4)

Where:

$r=\frac{0.5 in}{2}=0.25 in$ is the radius of the sphere (half the diameter)

$V_{B}=\frac{4\pi (0.25 in)^{3}}{3}$ (5)

$V_{B}=0.065 in^{3}$ (6) This is the volume of the gum ball

Know we are able to find the closest approximation of the volume of the cone that can be filled with bubble gum ball, by calculating the difference or substracting (6) from (3):

$V_{C}-V_{B}=11.22 in^{3}-0.065 in^{3}$ (7)

Finally:

$V_{C}-V_{B}=11.15 in^{3}$ (8)

8 0

2 years ago