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3 years ago

12

Most plants appear green because chlorophyll:

2 answers:

Sergio [31]3 years ago

4 0

C. reflects green light

ZanzabumX [31]3 years ago

3 0

Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green.

so its option C.

Hope it helps :)

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How have extinction events changed the system of the earth?

arsen [322]

Answer:

Explanation:The Carnian Pluvial Episode (Late Triassic) was a time of global to a major extinction event and might have been the trigger of the spectacular known delta system by area (1,000,000 km2) in Earth history.

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2 years ago

A planet has a mass of 5.97 x 1024 kg and a radius of 6.38 x 106 m. Find the weight of a 65.0 kg person at 1000 km above the sur

mote1985 [20]

<u>Answer:</u> The weight of the person above the surface of a planet is 635.83N.

<u>Explanation:</u>

To calculate the weight of a person, we use the formula:

$w=mg$ ....(1)

where,

w = weight of an object

m = mass of the person = 65kg

g = acceleration due to the gravity of the planet

For the calculation of weight, we need to first find the acceleration due to gravity and for that we use the formula:

$g=\frac{GM}{r^2}$

where, g = acceleration due to gravity = $?m/s^2$

G = Universal gravitational constant = $6.67\times 10^{-11}Nm^2/kg^2$

M = mass of the planet = $5.97\times 10^{24}kg$

r = distance of the person from the planet = $6.38\times 10^6m$

Putting values in above equation, we get:

$g=\frac{(6.67\times 10^{-11}kgm/s^2.m^2/kg^2)(5.97\times 10^{24}kg)}{(6.38\times 10^6m)^2}\\\\g=9.782m/s^2$

Putting this value in equation 1, we get:

$w=65kg\times 9.782m/s^2=635.83N$

Hence, the weight of the person above the surface of a planet is 635.83N.

7 0

2 years ago

ATP (adenosine triphosphate) is the molecule that all molecules use as a ___________________ source.

IrinaK [193]

Answer:

energy

Explanation:

Atp is the powerhouse of the cell.

THANK YOU

3 0

2 years ago

Read 2 more answers

Why does ice float

ohaa [14]

Ice is less densw than water (a)

The substances which are less dense than water float on water

7 0

2 years ago

Which physical property refers to the temperature at which a substance in a solid state transforms to a liquid state?

madam [21]

Answer:

Hello, There! Thanks for asking your Question.. Your answer is below

B. melting point Is The most Correct Answer

Explanation:

The Melting point is the temperature at which a solid is converted to a liquid.

Therefore, making your Answer option B.

Thanks for choosing Brainly!

6 0

2 years ago