plsssssssssssssssssss helppppp ples

Answer:

here's your answer hope it helps you

Explanation:

1. false

2. b

Answer:

False

B)

Explanation:

Yes, the identity of the matter changes as like it occurs when chemical bonds between molecules form and part.

The total mass before a chemical reaction is equal to the total mass after the chemical reaction, which is why equations must be balanced.

Order the colors of the visible light spectrum from longest wavelength to shortest wavelength.



green

yellow

orange

red

violet

indigo

blue

11 The diagram below shows two important parts of the human digestive system.

What temperature are the objects in space that x-rays come from?



a. millions of degrees Celsius


b. billions of degrees Celsius


c. hundreds of degrees Celsius


d. thousands of degrees Celsius

In what form can humans detect infrared waves?

a. light


b. sound


c. Humans cannot detect infrared waves.


d. heat

While humans cannot see UV waves, some insects, like bumblebees, can see them.

True
False

HELP HELP HELP HELP!!!

The UV beads worked due to

A. conduction
B. convection
C. radiation

What type of microscope has to be used for

Nucleus of a plant cell

Surface of a dust particle

Feeding behavior of a microorganism

Structure of a single white blood cell

Select the items below that produce gamma rays in space.



pulsars


supernova explosions


lightning


regions around black holes


neutron stars


nuclear explosions


radioactive decay

If a scientist knows the relative age of a fossil, he can also know
A.
the type of climate from which it came.
B.
the relative age of the rock where it was found.
C.
how it became extinct.
D.
how long the organism was alive.

I need help with this one

(GIVING BRAINLYIST) Jenna notices that the speed of the wind has increased throughout the day. What is causing the faster wind?

There has been no precipitation.
The difference in air pressure has decreased.
The difference in air pressure has increased.
The direction of the wind has changed to the south.

Image shows a lake, a factory, a cloud in the sky, a cow, dead organisms, a tree, and the sun. An arrow from the sun to the tree is labeled A. An arrow from the sky to the tree is labeled B. The sky is labeled C above the cloud. The letter D is in the air and an arrow points from it down to dead organisms. An arrow points from dead organisms to the ground labeled E. An arrow points from the cow into to the sky labeled F. An arrow points from the factory to the sky labeled G. An arrow from the sky to the lake is labeled H above the lake.
Using the diagram above, match the description to the corresponding location in the carbon cycle model. Provide the letter only.

Carbon dioxide is converted to sugar used for food.
Carbon trapped in fossil fuels is converted to carbon dioxide.
Organic carbon is converted to fossil fuels.
Carbon dioxide is converted to carbonates.
Sugar is broken down and converted to carbon dioxide.
Location ________
Location ________
Location ________
Location ________
Location ________

Part Two


Images shows a lake labeled carbonates in water, a cow labeled animal respiration, a tree labeled photosynthesis, a factory labeled factory emissions, the sun labeled sunlight, a cloud labeled carbon dioxide in atmosphere, another tree labeled plant respiration, an arrow from organic carbon to dead organism, and fossils and fossil fuels. Arrows are labeled as follows: A from the sunlight to photosynthesis, B from carbon dioxide in atmosphere to photosynthesis, C from factory emissions to carbon dioxide in atmosphere, D from carbon dioxide in atmosphere to carbonates in water, E from dead organisms to fossils and fossil fuels, and F from plant respiration to the sky.


Using the diagram above, answer the following questions:

True or False. The arrow labeled C represents a transfer of chemical energy to mechanical energy. Explain why this is true or false.
True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.
Which arrow or arrows represent a release of carbon dioxide? What process is occurring at the arrow(s) you selected?
Which arrow or arrows indicate a process that cycles carbon from living or nonliving organisms? Describe the process or processes you selected.
Which arrow or arrows represent reactions that demonstrate a conservation of mass and energy? Explain your answer.

The diagrams show two different ways that water, methane, and acetic acid can be modeled. Look closely at each type of model. Explain what each type of model shows best.


HELP ME PLZ!


T^T

11 The diagram below shows two important parts of the human digestive system.

Geologists have used the principle of superposition to determine that deeper layers of rock are usually older than shallower layers of rock.

A dating system that describes only the order in which rocks were formed is called
A.
absolute dating.
B.
radioactive dating.
C.
relative dating.
D.
numerical dating.

For most activities, the ________ makes a handy frame of reference.

Somebody, please help me answer this question, I don't understand it and its due tomorrow.

The diagram shows the process of photosynthesis. Which part represents an autotroph?

Hector has just learned that Earth is in the Milky Way galaxy. He is curious to know whether the Milky Way galaxy is unique in the universe. Which of these statements best answers Hector's question?
is it:
A.
There are thousands of galaxies in the universe identical to the Milky Way.
B.
The Milky Way is the only galaxy in the universe.
C.
There are billions of unique galaxies in the universe.
D.
There is no way to determine the presence of other galaxies in the universe.
which one is it?

AHHHH CAN SOMEONE PLEASE HELP ME WRITE ONE OF THESE I HAVE TO FINISH IT BY THE END OF THIS CLASS AND THERES NOT MUCH TIME LEFTTT PLEASE HELPPP

Use diagram #2 and try to explain what you think is happening during each of the following process: Fixation, Denitrification, nitrification, leaching, atmospheric nitrogen
Diagram included below. Please hurry and answer THANK YOU. I dont know the subject sorry

HELP ASAP BRAINLIEST INCLUDE

People color-code telescope images so we can see the invisible wavelengths that are in space.


True
False

Match the type of telescope to the correct example.


1. infrared telescope
2. microwave telescope
3. radio telescope
4. x-ray telescope

Please help, it's supposed to be done by Friday

Physical science studies the relationships between __________, ___________, and ___________.

HELP ASAP!!

Which statement accurately describes in terms of energy what happens when water turns to steam?
The water releases energy which causes chemical bonds to break, changing water to steam.
The water releases energy which causes the water molecules to have less kinetic and potential energy, changing their configuration from liquid to gas.
The water absorbs energy which causes the water molecules to have more kinetic and potential energy, changing their configuration from a liquid to a gas.
The water absorbs energy which causes chemical bonds to break, changing water to steam.

A student drank a bottle of water during a car ride up a mountain. At the top of the mountain, the student capped the plastic bottle. During the drive back down the mountain, what might happen to the bottle?

A) It will expand because the air is lower at the bottom of the mountain.

B) It will contract because the air pressure is higher at the bottom of the mountain.

C) It will become lighter. The air particles in the bottle weigh less because they are from the top of the mountain.

D) It will not change because it is empty and contains no air.

What action-reaction forces are involved when a rocket engine fires? Why doesn't a rocket need air to push on?