which process is the source of most oxygen in the atmosphere

Answers

Answer 1

Answer:

photosynthesis

The air that enters human lungs contains about 21 percent oxygen. The process responsible for producing most of the Earth's oxygen is known as photosynthesis. In this process, plants and certain other organisms convert sunlight into oxygen and other products.

Explanation:

Hope it helps! Correct me if I am wrong!

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Answer 2

Answer:

Photosynthesis I think

Explanation:


Related Questions

Which of the following forces can change the motion of an object? A. push B. shove C. pull D. all of these

Answers

Answer: The answer is D all of these sorry if i am wrong

Explanation:

a battery causes a current of 2.0 A to flow through a lamp. the power used by the lamp is 12 watts. what is the voltage (i asked this before and never got the answer, i need the answer soon)

Answers

Answer: 6V

Explanation:

Two cars of the same mass have different velocities. Which car has more momentum?

Answers

Answer:

The car with the higher velocity would have a more impactful momentum.

Increased global temperature may lead to more forest fires, longer droughts, and loss of habitat. How will this effect many species? *

Answers

Answer:

Many species will be affected by increased global temperatures due to following reasons as mentioned.

As snow at poles will continue to melt and habitat for many species will be lost. This is create imbalance in the food chain of oceans which are prime source of food for many species. Some species will thrive as their hunters will be eradicated due to loss of habitat and overall food chain balance will be disturbed. This will cause species to go extinct.

The cycle of rain will be disturbed causing an imbalance in water cycle which will cause droughts and species will suffer and die eventually will go extinct.

Which feature causes a gap in the geologic record?

extrusion
fault
intrusion
erosion

Answers

Answer:

A                                    

Explanation:

Answer : a. Extrusion

100 cm cubic of water is mixed with 50 centimetres cubic of concentrated acid of density 1.2 gram per centimetre cube assuming no change in volume find the average density of the mixture the density of water is 1.0 gram per centimetre cube​

Answers

Answer:

Average Density = 1.07 g/cm³

Explanation:

The average density of the whole mixture is given by the following formula:

[tex]Average\ Density = \frac{mass\ of\ whole\ mixture}{volume\ of\ whole\ mixture}[/tex]

where,

volume of whole mixture = volume of water + volume of acid

volume of whole mixture = 100 cm³ + 50 cm³ = 150cm³

mass of whole mixture = mass of water + mass of acid

mass of whole mixture = (volume of water)(density of water) + (volume of acid)(density of acid)

mass of whole mixture = (100 cm³)(1 g/cm³) + (50 cm³)(1.2 g/cm³)

mass of whole mixture = 160 g

Therefore,

[tex]Average\ Density = \frac{160\ g}{150\ cm^3}[/tex]

Average Density = 1.07 g/cm³

Which statement explains how planets move in orbit as supported by Newton’s first law of motion?

Planets can change the direction of their own orbital path.
Planets can change orbits due to their inertia.
Planets in motion will have a constant speed unless acted on by an outside force.
Planets with a greater mass will orbit more quickly than smaller planets.

Answers

the answer is c i think

Answer:

C. Planets in motion will have a constant speed unless acted on by an outside force.

Explanation:

Took the test

has anyone done this???i need the last questions for 1 and 2

Answers

Answer:

no i haven't done it

Explanation:

clean yo computer tho

Which of the following is the best example of a heat conductor?

Answers

Answer:

Anything with a dark shade in color and with no reflective surface or any metal

Explanation:

In this case, a dark shirt or blanket would be a heat conductor as well as metal would be, too

Which force is always attractive and has a very small range? strong nuclear O weak nuclear O gravitational electromagnetic​

Answers

Answer:

Strong nuclear

Explanation:

Took a quiz on this and got it right

Answer:

Strong nuclear

Explanation:

A car starts from rest with an acceleration of 5.0 m / s² and travels a distance of 1.0 km. What is the speed value of this car?

Answers

Answer:

100 m/s

Explanation:

We'll begin by converting 1 km to m. This can be obtained as follow:

1 km = 1000 m

Finally, we shall determine the final velocity of the car. This can be obtained as follow:

Initial velocity (u) = 0 m/s

Acceleration (a) = 5.0 m/s²

Distance (s) = 1000 m

Final velocity (v) =?

v² = u² + 2as

v² = 0² + (2 × 5 × 1000)

v² = 0 + 10000

v² = 10000

Take the square root of both side

v = √10000

v = 100 m/s

Therefore, the speed value of the car is 100 m/s.

A paved blacktop parking lot was built on what was
once a soil-covered field. This area will now
experience increased runoff when rain occurs because
the paved parking lot has

A) less capillarity B) less permeability
C) greater infiltration D) greater porosity

Answers

Answer:

The answer is B. less permeability.

Explanation:

CAN SOMEONE PLEASE HELP FIGURE THIS OUT PLEASE

Answers

B is the answer hope this helped you

HELPPPP PLSSS I NEED HELP

Answers

Answer:

D. Pearl Harbor

Explanation:

What is the main function of b-cells?


B. They attack cells of the body that are infected.


None of these


A. They create antibodies.


They signal other lymphocytes to go after the pathogens.

Answers

Answer: They create antibodies.

In the system shown above, the pulley is a uniform disk with a mass of .75 kg and a radius of 6.5 cm. The coefficient of friction between the 5.8 kg mass and the horizontal surface is .25, and the ropes does not slip on the pulley. They system is released from rest. Use work-energy principles to determine the kinetic energy of the (a) 2.8 kg mass and (b) the pulley after the 5.8 kg mass has moved 2.2 meters.

Answers

Answer:

i am answering the same question 3rd time

please find the answer in the images attached.

what celestial body is cloest to earth

Answers

Answer:

Mercury

Essentially because Mercury is closest to the Sun, when taking an average over time, Mercury is the closest planet to the Earth, and - in that measure - it is the closest planet to each of the other planets in the Solar System.

Explanation:

How many joules are utilized when
warming 5g of steam from 100°C to 120°C?

Answers

Answer:

Q=mc(T2-T1)

Explanation:

Ti is the temperature

m is mass

c is specific heat capacity for steam

Q is heat, [Q]=J

please answer this time question in do not send a link to an unknown website or you are getting reported.

Answers

(1) Use Newton's second law: The force F required to accelerate a mass m with acceleration a satisfies

F = m a

So the force needed to accelerate the lion-stretcher system is

F = (175 kg) (2 m/s²) = 350 N

(2) Average speed is defined as the ratio of distance traveled to the time it takes to travel that distance, so in this case the bus's average speed is

(280 km) / (4 h) = 70 km/h

(3) The vertical lines in the plot split up the distance function into 5-minute chunks. The one with the highest average speed is the one over which the distance changes the most. Roughly, the average speeds over each of the given choices is

• 0 to 5 min : (1500 m - 0 m) / (5 min) = 300 m/min

• 10 to 15 min : (3250 m - 2500 m) / (5 min) = 150 m/min

• 15 to 20 min : (3750 m - 3250 m) / (5 min) = 100 m/min

• 25 to 30 min : (4500 m - 4250 m) / (5 min) = 50 m/min

(4) Velocity is a vector, so it has both magnitude and direction. A car moving at constant velocity would be traveling at the same magnitude and direction. But a car on the circular track is constantly turning and changing direction.

A double slit produces a diffraction pattern that is a combination of single and double slit interference. Find the ratio of the width of the slits to the separation between them, if the first minimum of the single slit pattern falls on the fifth maximum of the double slit pattern. (This will greatly reduce the intensity of the fifth maximum.)

Answers

Answer:

The ratio of the width of the slits to the separation between them is 1:5

Explanation:

For this set of question

n = 1, m = 5

As we know for nth minimum

[tex]D sin\theta =n \lambda[/tex]

For mth Maximum

[tex]d sin\theta =m \lambda[/tex]

From the above two equations we get

[tex]Sin\theta = \frac{1*\lambda}{D} \\d * \frac{1*\lambda}{D} = 5 *\lambda\\\frac{D}{d} = \frac{1}{5}[/tex]

The ratio of the width of the slits to the separation between them is 1:5

which vector is the sum of vectors a and b

Answers

Answer:

C

Explanation:

Vector A points up

Vector B points right

The combination must be both up and right which is C

This important factor of survival for the coral reef is
a:symbiotic
b: abiotic
c: biotic
D:parasitic

Answers

Answer: biotic

Explanation:

The mass of a body is 25 kg and the value of acceleration due to gravity is 9.8 m/s^2. Calculate the weight of body.​

Answers

Explanation:

weight=mass ×acceleration

weight=25×9.8

=245

W=mg
W= 25 * 9.8
W=245 kgm/s2
W=245N newton

A hydrogen atom and a carbon atom move at the same speed. Which has the greater kinetic energy?

Answers

Answer:

The carbon atom has greater kinetic energy than a hydrogen atom.

Hope this helps! :)

Carbon atom has the greater kinetic energy.

What is meant by kinetic energy ?

Kinetic energy is defined as the energy attained by a body by virtue of its motion.

Here,

The speed of the hydrogen atom and carbon atom are the same.

Kinetic energy of hydrogen atom, KEн = 1/2 m(н) v(н)²

Kinetic energy of carbon atom, KEс = 1/2 m(с) v(с)²

where m and v are mass and speed respectively.

Taking the ratio,

KEн/KEс = m(н)/m(с)

KEн/KEс = 2/12

KEн/KEс = 1/6

KEс = 6KEн

Therefore the kinetic energy of carbon atom is 6 times the kinetic energy of hydrogen atom.

Hence,

Carbon atom has the greater kinetic energy.

To learn more about kinetic energy, click:

https://brainly.com/question/72216

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A car is traveling constant spoed ol 12 12 m/s When the driver accelerates, the car reaches a speed of 26 m/s in s What is the average acceleration of the

Answers

Answer:

Average acceleration of the car is 1.167 m/s^2

Explanation:

The speed of car with which it is travelling is 12 m/s

As the driver accelerates the car, the speed reaches 26 m/s

The change in speed in 12 seconds is

26 -12 = 14 m/s

Average acceleration is change in speed divided by time

[tex]\frac{14}{12} \\1.167[/tex] m/s^2

who needs more body building food, a father or a child? Why?​

Answers

Answer:

A Child has a fast metabolism since it is growing fast it needs Food, Liquids, Sleep.

Explanation:

A father has already Grown and is only gaining age.

So we can Conclude that A child needs more body building food.

I can someone help me and also I gtg so ill be back in a bit

Answers

Answer: No sure what to do

Explanation: points for points

The speed of light is 300,000,000 m/s. Red light has a wavelength of 0.0000007 m. What is its frequency?

Answers

Answer:

2.33..

Explanation:

f = wavelength/speed

= 0.0000007/300000000

= 2.333...

19. Two waves traveling in opposite directions on a rope meet and undergo complete destructive interference.
Which of the following best
describes the waves a moment after the waves meet and coincide?
The waves no longer exist.
The waves continue unchanged.
The waves reflect and travel backward.
A single wave continues along the rope.
a.
b.
c.
d.

Answers

Answer:

B

Explanation:

This picture clicked by me
How's it​

Answers

Answer:

Hey dear

U are a Nice photographer

The pic I awesome.

wow that looks really cool! 9/10

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