Physics Middle School

What are carbon dioxide levels like in our atmosphere today?

A. at an all-time high in Earth’s recorded history

B. about the same as it was 1 million years ago

C.at an all-time low in Earth’s recorded history

D.lower than it was 75 years ago

Answers

Answer 1

Answer:

i believe its A.

Explanation:

Answer 2
The answer is A.

Data has shown that it has made a high record of 412.5 ppm as of 2020.

Hope I helped :)!

Related Questions

What is the difference between compression and tension

Answers

Tension is pulling apart, compression is pushing together

what is a waxing gibbous?

Answers

Answer:

Waxing gibbous: more than half-lit, less than full

The word gibbous comes from a root word that means hump-backed. People often see a waxing gibbous moon in the afternoon, shortly after moonrise, while it's ascending in the east as the sun is descending in the west.

Explanation:

hope this helps! ;)

The Waxing Gibbous is an intermediate phase of the Moon that starts right after the First Quarter when the illumination is 50%.

The name Gibbous comes from the Moon's shape, which is less than a Full Moon but more extensive than the Third Quarter's semicircle shape.

Here’s the last two questions again, tysm!

Answers

Answer:2 possible ways for question 16 and for question 17 they could be two posible causes

Explanation for 16:

1)you can use velocity like a rocket fast enough to reach the meteor and crush it mid way to earth 2)you can use mass like a big rock but if the meteor is to big then use velocity too for it can help the mass have a big colisio whit the asteroid whit a catapult or a big launcher and the moon gravity can help to because of the force

Explanation for 17:the two were in a different road and the one that is sideways was at a bigger speed then the car left in the middle and because of the mass the collision was worse For the one in the middle

there are many things you could do, sorry i cant list one but its rly easy

The law of conservation of matter states that matter can be neither created nor destroyed. Your friend shows you the following chemical equation: The equation was CaCO3 →CaO+CO2
He says that because the oxygen atoms are split between two different molecules in the products, the equation does not support the law of conservation of matter. Is your friend right? Explain your answer. Draw a model showing the number of each type of atom in the reactants and products. Use your model to explain your answer.

PLEASE HELP

Answers

Yes, our friend is right, because there is no contradiction to the law of conservation of mass in the above equation. It just the mass of the product is equal to the mass of reactants.. and that is shown in the equation you have presented earlier

Answer:correct

Explanation:

Just find the steady acceleration

Answers

Answer:

the steady acceleration is 4m/s^2

Explanation:

all you need to do for the speed is add 4 to the last number to get the next one. in your case you want to find the speed after 3seconds and 5 seconds so just add 4 to 8 to get the first one then add 4 to 16 to get second one

1s      2s       3s        4s        5s        6s        7s

4m/s 8m/s 12m/s 16m/s 20m/s 24m/s 28m/s

Answer: the steady acceleration is 4m/s^2 ( give the other guy brainliest)

Explanation:

Help I don’t know what this is but I need help

Answers

Answer:

Mitosis is a process where a single cell divides into two identical daughter cells or  (cell division).

Explanation:

There are 5 stages of Mitosis. In order they are

1. Prophase

2. prometaphase

3. metaphase

4. anaphase

5.  telophase

Cytokinesis is the final physical cell division after telophase, and it is sometimes referred to as the sixth phase of mitosis.

I really hope this helps!

A measuring cylinder has 15cm3 of water in it. A piece of plasticine was placed into the measuring cylinder. The volume now measures 31cm3. What is the volume of the plasticine?

Answers

Answer:

Pretty sure this one is 16

Explanation:

Answer; 16cm^3

Explanation;
31-original volume(15)=16cm^3*

Hope this helped :)

Which of these does not affect the climate of a city?
Select one:
a. mountain ranges
b. ocean currents
c. altitude
d. population

Answers

Answer:

altitude

Explanation:

this is the correct answer happy

Answer: c  , hope it helps :3

Please complete this in 3-5 sentences.

Answers

Answer:

Magnetic forces are stronger closer to magnets. The Wednesday launch stored more potential energy, and launched the spacecraft at a faster speed because the stronger magnetic field closer to the magnet resulted in a greater increase in potential energy.

<3 appreciate brainliest  

Describe the relationship between wavelength and the energy of the wave.

Answers

Just as wavelength and frequency are related to light, they are also related to energy. The shorter the wavelengths and higher the frequency corresponds with greater energy. So the longer the wavelengths and lower the frequency results in lower energy.

If I double the velocity of a moving object, what happens to the object’s energy?

Answers

Answer:

Kinetic energy is proportional to the object's velocity squared. This indicates that when an object's velocity doubles, the object's kinetic energy quadruples.

Explanation:

the kinetic energy of the moving object doubles (thats what i think lol)

Location A is near the equator on the windward side of a mountain. Location B is at 30N latitude on the east side of the Atlantic Ocean. Describe the climate in each location. Explain your answer.

Answers

Answer:

I don't know the answer sorry forgive me

Explanation:

sorry

Types of crust found at certain tectonic boundaries (earths layers)

Pls answer I need to finish this assignment

Answers

Answer:

The Earth’s lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.

Ozone layer is the answer

Please write in 4-6 sentences

Answers

I think Jamal should put the purple car so
where point A(s) faces in N and then B
faces the back. Or, he can move the green
car to where it should be part D(n) faces S
and part C faces the back. I think this
because if you keep the purple car with N
+ N facing each other, it won't move the
car at all and it would force each other
apart. Also, the same thing for the green
car, if you keep the green car with S + S
facing each other, it won't move the car at
all and it would force each other apart.

Your turn it in score is 98%. I am not allowed to grade any assignments that have a score that high. Please redo the assignment, and re-submit. Thanks.

Mr. Z what does this mean somebody help?

Answers

Answer:   He can't grade it your to smart .

Explanation:

That makes no sense.. he should be able to grade it

The object represented by this graph is moving
A. away from the origin at a constant velocity.
B. away from the origin at a decreasing velocity.
C. toward the origin at a constant velocity.
D. toward the origin at a decreasing velocity.

Answers

C: Towards the origin at a constant velocity.

A regular object has the following dimensions: Height 10cm, Length 13cm, Width 5cm. What is the volume of this object?

Answers

Answer:

650

Explanation:

To find the volume of an object, you need to multiply height x length x width

13 times 5 is 65

10 times 65 is 650

[tex]\text{Volume,} ~V= 10~ cm \times 13~ cm \times 5~ cm = 650 ~ cm^3[/tex]

could someone summarize these into a paragraph? i'll give brainliest
DUE TODAY!!

Answers

Answer:

I can't see the picture

Explanation:

Im sorry can you right whats on the picture down in the comments plz.

The Newton's three laws of motion are Law of Inertia, Law of Mass and Acceleration, and the Third Law of Motion. A body at rest persists in its state of rest, and a body in motion remains in constant motion along a straight line unless acted upon by an external force.

(Live Lab: A Balancing Act) help please

Answers

Answer:

this is somthing you have to do on your own for now

Explanation: i cant answer it

sorry i camt answer that

You are doing a project to determine weather the amount of air in a ball determines how high it bounces. What is the independent variable

Answers

Answer:

The Independant Variable Would Be The BALL

Explanation:

This is because an independent variable is exactly what it sounds like. It is a variable that stands alone and isn't changed by the other variables you are trying to measure. The ball doesn't change size or type ( Basketball , Football ETC.)

Answer:

The ball

Explanation:

(give other person brainliest). :D

As crust forms at the mid-ocean ridge, it gets pushed away from the ridge as newer crust forms. What is true about crust that forms at the mid-ocean ridge?



A: crust further away from the mid-ocean ridge is younger and crust closer is older


B: crust further away from the mid-ocean ridge is older and crust closer is newer


C: crust is not created at the mid-ocean ridge


D: crust further away from the mid-ocean ridge and crust closer are the same age

Answers

The to the question is D
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