please help!!! i’ll mark as brainliest!! what is the type of system where a furnace burns fuel and heats air?

a. radiation system
b. forced - heat - system
c. conduction system
d. forced - air - system

Answers

Answer 1

Answer:

C

Explanation:

carbon is used as fuel and heats the furnace


Related Questions

Importance of photosynthesis to humans

Answers

Answer:

Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy. The importance of photosynthesis in our life is the oxygen it produces. Without photosynthesis there would be little to no oxygen on the planet.

Bonus: we eat plants

Hope this helps!

Imagine the Earth takes longer to complete one revolution. How would that affect a solar day? A sidereal day?

Answers

Answer:

Sidereal time is time kept with respect to the distant stars.

A solar day lasts from when the Sun is on the meridian at a point on Earth until it is next on the meridian. A solar day is exactly 24 hours (of solar time). Because of the Earth's revolution, a solar day is slightly longer than a sidereal day. In every day life, we use solar time.

Sleet forms directly from which type of precipitation?
A. Snowflakes
B. Hail
C. Rain drops.
D. Dust

Answers

Answer:

C

Explanation:

Sleet is pellets of ice that form when snow falls into a warm layer and melts into rain. The rain then falls into a freezing layer of air that is deep enough to refreeze the raindrops into pellets

Answer is rain drops because if it’s so cold it will make sleet


PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!

Answers

Answer:

C

Explanation:

Answer: the answer is c

Explanation:

13. The cell membrane is made of a _________________________.

Answers

The cell membrane is made of lipids, protein, and carbohydrates.

15. What must occur in order for genetic material to be passed to cells during cell division?

A DNA replication
B RNA synthesis
C osmosis
D diffusion

Answers

Answer:

A

Explanation:

the process involves replication of cell's chromosomes, segregation of the copied DNA and splitting of parent cell's cytoplasm

In order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.

What is the significance of DNA replication in cells?

DNA replication is the process by which the genetic contents of a cell, the DNA, are copied which is a crucial process that occurs in all living organisms and is necessary for the maintenance of their genetic information and the transmission of this information to the next generation, it is essential for cell division and growth, as well as for the repair of damaged DNA and plays a central role in animals and plants, as new life can form and cell division takes place due to this process.

Hence, in order for genetic material to be passed to cells during cell division, DNA replication should take place, as in Option A, and the passing of genetic contents varies between mitosis and meiosis.

Learn more about the significance of DNA replication here.

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which of the following human cells has a ploidy number of n?

A uterine
B sperm
C bladder
D lung

Answers

Answer:

Sperm

Explanation:

Human diploid cells have 46 chromosomes (the somatic number, 2n) and human haploid gametes (egg and sperm) have 23 chromosomes (n).

How does the strength of a sound field 1 meter from its source compare with its strength 4 meters away?

Answers

Intensity is defined to be the power per unit area carried by a wave. Power is the rate at which energy is transferred by the wave. In equation form, intensity I is
I
=
P
A
I
=
P
A
, where P is the power through an area A. The SI unit for I is W/m2. The intensity of a sound wave is related to its amplitude squared by the following relationship:

I
=
(
Δ
p
)
2
2
ρ
v
w

How did black leaders and abolitionists embody the democratic principles and ideals of liberty and equality in their actions?

Answers

The Civil Rights Movement did not suddenly appear out of nowhere in the twentieth century. Efforts to improve the quality of life for African Americans are as old as the United States. By the time of the American Revolution in the late eighteenth century, abolitionists were already working to eliminate racial injustice and bring an end to the institution of slavery

Plz help me well mark brainliest if you are correct!

Answers

Answer:

aaaaaaaaaaaaaa

Explanation:

Answer:

B. A Fiery body of gas that Looks like a light when the Sky Is Dark.

Explanation:

What happens when a continental plate and a oceanic plate converge and why? Choose one.

(no links please)

a. The continental plate goes under the oceanic plate (subducts) because the continental plate is
thinner than the oceanic plate.

b. The continental plate subducts under the oceanic plate because the continental plate is thinner
than the oceanic plate.

c. The oceanic plate subducts under the continental plate because the oceanic plate is lighter than the continental plate.

d. None of these

e. The oceanic plate subducts under the continental plate because though the oceanic plate is
thinner than the continental plate, it is more dense.

pleaseee helpppp
will mark brainliest :)

Answers

Answer: i think it's e

Explanation: When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser.

Which of the following rocks would most likely be found near a volcano?

marble
sandstone
limestone
basalt

Answers

Answer:

C. limestone

Explanation:

Answer: the answer to your question is limestone so that is ur answer tothe question

Explanation:

sorry im dislexic

I'll give Brainlyest if I can just please hurry

Answers

Answer:

hi

Mostly will be earthquake

Answer:

I would say earthquakes, and i also recommend using jiskha to get answers to schoolwork, it gives better answers then brainly. Good luck:)

Explanation:

reproductive isolation occurs when

Answers

Answer:

Reproductive isolation can occur when individuals or the populations exhibit differences in the timing of various activities like mating and so on .

Which of the following types of power does not use a turbine to generate
electricity?
O A. Wind
B. Nuclear
C. Coal
O D. Solar

Answers

D. Solar

Explanation:

Solar converts sunlight directly into electricity without the need of a turbine

Solar does not use a turbine to generate electricity. Therefore, option (D) is correct.

What is Solar power?


Solar power is a renewable and sustainable energy source that generates electricity by harnessing the energy from the sun. It is a clean energy alternative to fossil fuels, as it does not produce harmful emissions or pollutants that contribute to climate change.

Solar power systems use photovoltaic (PV) cells, which convert sunlight into direct current (DC) electricity. An inverter then converts the DC electricity into alternating current (AC) electricity that can be used in homes and businesses.

Solar power is becoming more affordable and accessible, and many governments around the world offer incentives to encourage the installation of solar panels. The growth of solar power has the potential to reduce greenhouse gas emissions, create jobs, and provide energy access to remote communities.

Learn more about solar power, here:

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if u do it in 2 minitets giving brainly Est what are 3 ways animals find mates

Answers

1. Noises.

2. Scents.

3. Behavior.

Hope this helps!

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

B the plants

Explanation:

The first level on a food pyramid has the most stored energy

If you push a cooler with 20 N of force for a distance of 2 meters, the amount of work done is

Answers

Answer:

40 J

Explanation:

PLEASE HELP BIOLOGY!

Answers

Answer:

1. label the molecule below:

-1 ) phosphate group

-2)ribose

-3) adenine

2. Label ATP/ADP cycle:

(label 'em clockwise)

- ATP

-Water

- Phosphate

-ADP.

what the first person said:)

6. Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:
Rhus
poison
toxicondendron
ivy

Answers

Answer:

ivy

Explanation:

Answer:

Poison Ivy is also known as Rhus toxicodendron. Its species identifier is:

Rhus

poison

toxicondendron

ivy

Explanation:

photosynthesis is a reaction that

Answers

Answer:

that takes place inside a plant, producing food for the plant to survive

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Answer:

D. all of those options would help

Answer:

D) All of the above

Explanation:

because it makes it safer to drink

Which of the following is an example of predation?

Organism A benefits, Organism B is unaffected

Organism A benefits, Organism B benefits

Organism A benefits, Organism B is harmed

Organism A is unaffected. Organism B is unaffected​

Answers

Organism A benefits, Organism B is harmed.

A student boiled a pot of water on the stove until there was nothing left. If he started with 100 grams of water, how many grams of water vapor did he produce?

Answers

Answer:

100 grams

Explanation:

If there is nothing left that means that all of the 100 grams have become water vapors

He produced 100 grams of water vapor in such a way that nothing was left, which means that all the water vapor of 100 grams has become.

What is Water vapor?

Water vapor is also called aqueous vapor is defined as the gaseous phase of water which is a state of water within the hydrosphere. Water vapor can result from the evaporation or boiling of liquid water, or from the sublimation of ice that is transparent, as are most components of the atmosphere.

When water absorbs a sufficient amount of heat it becomes a gas known as water vapour, where the process is called evaporation. The water vapor (steam) mixes with the air and appears as water boils in a teapot and escapes into the air.

Thus, the student produced 100 grams of water vapor in such a way that nothing was left, which means that all the water vapor of 100 grams has become.

Learn more about Water vapor, here:

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how do autotrophs breakdown energy that it created through photosynthesis

Answers

Answer:

Some types of bacteria are autotrophs. Most autotrophs use a process called photosynthesis to make their food. In photosynthesis, autotrophs use energy from the sun to convert water from the soil and carbon dioxide from the air into a nutrient called glucose. Glucose is a type of sugar.

Explanation:

What happens when a person of blood type B receives blood type A?

Answers

Answer:

the white blood cells in your body would attack, in this case blood type A blood cells.

Explanation:

this happens because your body believes that the opposing blood type is bacteria, and is trying it kill you

17
15. Some scientists use molecular evidence to study
evolution. One type of molecular evidence is
the amino acid sequence of particular proteins in
various species.
Which of the following best describes what the
study of these sequences reveals about the species?
A. The more similar the sequences are, the faster
the species will coevolve.
B. The more similar the sequences are, the more
closely related the species are.
C. The longer the sequences are, the earlier the
species evolved in geologic history,
D. The longer the sequences are, the more
adapted the species are to their environments.

Answers

The answer would be D

Answer:

D

Explanation:

Because yes

Please check this for me

Answers

Answer:

T

Explanation:

I think you have it right...while panic attacks can happen for no reason (no stimulus), anxiety attacks usually happen for a reason.

Answer:

TRUEE! GOOD JOB :) HAVE A GOO DAY

Explanation:

Plants have many characteristics.

What is responsible for these characteristics?

Select all that apply.


inherited from parents

inherited by sibling plants

affected by the environment

affected by soil position

Answers

Answer:bnunununun Noicd

Explanation: skssssss

Give me your best shot of explaining how this occurred. This is different from the twins as this time both parents have darker skin, some of the offspring share that same skin color and some are albino

Answers

The parents might be heterozygous for albinism. So Aa and Aa for example. So their children have a 25% chance of having albinism
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