Multiple-choice questions Section A Choose the most suitable answer and write the corresponding letter (A, B, C or D) in the brackets provided. 1. Which of the following is not true about air? (A) Air is a mixture, (B) The density of air is less than the densities of its gaseous components (C) Air supports burning. (D) The gases in air can be separated by physical methods. 2. Which statement about carbon dioxide gas is true? (A) It is produced when plants photosynthesise. (B) It is used in rocket fuels. (C) It relights a glowing splint. (D) It is produced when wood is burned. ​

Answers

Answer 1

Answer:

A and B is the correct answer. 888888


Related Questions

How is the circulatory system related to the digestive system?

Answers

Answer:

The Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System, which then carries those nutrients where they need to go.

Explanation:

I think your selected answer is correct!

Hope this helps!

Which of the following is a good example of acoustic encoding?


being able to hum the tune to a song even when you can’t remember the lyrics


dreaming about an airport and deciding to take a trip


remembering the names of the Great Lakes with the acronym HOMES


thinking about a bike you plan to buy and having the image of the bike appear in your mind

Answers

A good example of acoustic encoding is remembering the names of the Great Lakes with the acronym HOMES

What is acoustic encoding?

Acoustic encoding can be defined as the process of remembering something that one learns or hear.

Other examples of acoustic encoding are as follows:

Learning the alphabets Learning the multiplication table

In conclusion, a good example of acoustic encoding is remembering the names of the Great Lakes with the acronym HOMES

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Is this a bacteria or virus? Help please and thank youuuu !

Answers

Answer:

its virus i think so because of the structure

Answer:

virus

Explanation:

brainliest?

Please help me, I need to finish soon

Answers

Answer:

1. Genes

2. Both (If possible)

3. Genes

4. Proteins

Explanation:

Answer:

1 genes

2 protein

3 proteins

4enes


Why are fermentation and anaerobic production of ATP by muscle cells less efficient than glycolysis?

Answers

Glycolysis is an aerobic process, fermentation process produces only 2 ATP, whereas the other process produces 38 ATP. This gives the impression that aerobic respiration is a more dependable method of capturing biological energy.

What is the aerobic process?

An aerobic process is the process which requires the presence of oxygen or air, as contrast to an anaerobic process, which does not.

Aerobic respiration is an example of an aerobic process. Cellular respiration is the process by which a biological cell breathes.

The end product is one of the most glaring differences between fermentation and aerobic respiration. The fermentation process produces only 2 ATP, on the other hand, the aerobic process produces 38 ATP.

This suggests that aerobic respiration is a more acceptable method of capturing biological energy.

Thus, the fermentation and anaerobic production of ATP by muscle cells less efficient than glycolysis due to the difference in the production of number of ATPs.

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photosynthesis and respiration
a) what do all living organisms need in order to sustain life?
b) what is the main source of energy? what two useful forms of energy come from the sun?
c) what do we call the energy that is provided by the sun in the form of heat and light?
e) what are the seven life processes that all living organisms need energy for? ​

Answers

Answer is A all living things need to go through the photosynthesis cycle and need oxygen to sustain life

climate change will likly increase monarch butterflies​

Answers

Answer:

Incorrect

Explanation:

Climate change, pesticides put monarch butterflies at risk of extinction. A new study finds that monarch wings are getting larger, possibly because climate change has forced the butterflies to travel longer distances as breeding grounds shift farther north!

Good Luck on the test!

I think that I did these wrong. Is there anyone that can clarify if they are right?​

Answers

You got them right
For four it should be there are no carriers because they were affected(female)

Describe the components involved in the homeostasis mechanism

Answers

Answer:

a receptor, control centre, and effector.

Explanation:

it's the first thing that showed up when I searched it up on the internet, hope this helps

Answer:

a receptor, control center, and effector

5.List the four types of fault. Describe the movement and type of stress it produces.
6. What are the two features of Folding?
7. Name the two scales utilized for measuring an earthquake size.

Answers

Answer:

5. -NORMAL-REVERSE-STRIKE SLIP-OBLIQUE.

HOPE IT HELPS.

I need somebody to clarify if any of these are wrong because I have no clue what I am doing.​

Answers

Answer:

is there exam is going on

what is impact of green revolution??​

Answers

Answer:

revolution is earth quick temporarily unavailable for people. current this question

Which of the following is the main cause of increased burning of fossil fuels?

1) advancements in technology
2) economic and population growth
3) new types of energy production
4) agricultural innovation

Answers

Answer:

2

Explanation:

The main cause of the increase in the burning of fossil fuels is economic and population growth.

What is the future of fossil fuels?

Part of the increase in consumption will be with the replacement of coal by natural gas, but in the mid-2020s, the prospects for gas will begin to deteriorate due to environmental issues, greater competition from renewable energies, efficiency gains and improvement in prospects for alternative low-impact gases.

With this information, we can conclude that the main cause of the increase in the burning of fossil fuels is economic and population growth. Because the greater the purchasing power of the population, the greater the use of fossil fuels.

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One example of a cell needing ATP energy is
during

Answers

Answer:

ATP can be used to store energy for future reactions or be withdrawn to pay for reactions when energy is required by the cell. Animals store the energy obtained from the breakdown of food as ATP.

about 8 to 9 million years ago, this ancestor diverged into two groups. one would evolve into gorillas; the other would evolve into humans, chimpanzees, and bonobos. what is the name of the fossil ancestor?

Answers

Answer:

Homo(space)erectus

Explanation:

Please give Brainliest

Answer:

Homo erectus

Explanation:

describe the difference between small and large motor units in regards to fine movement versus strength

Answers

Big black bubble hotter jujube juice. Huh.

describe the Endosymbiotic theory

Answers

Answer: The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells were once aerobic bacteria (prokaryote) that were ingested by a large anaerobic bacteria (prokaryote). This theory explains the origin of eukaryotic cells.

Explanation: Hope this helps ;)

5th grade pls help

All atoms have the same number of protons. This statement is (true or false) because ___

Answers

Only atoms with the same element have the same number of protons, so this is false.



False, the amount of protons determines the type of element. If each element had the same number of protons they would all be the same element.

PLEASE HELP
Analyze this figure to categorize the chemical reaction as a synthesis reaction or a degradation reaction. Cite evidence to support your answer.

Answers

Answer:

Considering the definition of wavelength, the correct answer is option D. You can see that "d" represents the distance between two consecutive highs, and then the wave repeats. In this way the definition of wavelength is fulfilled.

Definition of wavelength

In a periodic wave, that is, for the type of wave that repeats with exactly the same shape every given time interval, the wavelength is the physical distance between two points from which the wave repeats.

That is, the wavelength is its spatial period, that is, the distance at which the waveform repeats itself. Normally, two consecutive points that have the same phase are considered: two maximums, two minimums, two zero crossings (in the same direction).

In summary, the wavelength is the actual distance that a disturbance can travel in a given time interval, the quas between two consecutive maxima with respect to the physical property of the wave.

Letter that represent the wavelength of the wave

Considering the definition of wavelength, the correct answer is option D. You can see that "d" represents the distance between two consecutive highs, and then the wave repeats. In this way the definition of wavelength is fulfilled.

Explanation:

If a species' sperm and egg cells each have a total of 10 chromosomes, then a cell in
the body of that organism would have chromosomes total.
O 10
O 40
20
5

Answers

Answer: 20

Explanation:

Because each organism has 10 chromosome, with two organisms they’re would be 20 total.

Some organisms have produced numerous copies of their chromosomes during evolution as a result of mistakes made during the meiotic process, which produces sex cells or gametes. Thus, option C is correct.

What are the number of chromosome in an organism?

The copies of each gene may not be identical, since each copy of the homologous pair of chromosomes comes from a different parent.

The particular combination of genes acquired from both parents accounts for the variance across individuals within a species.

Aneuploidy, monoploidy, the loss of an entire set of chromosomes, or the gaining of one or more full sets of chromosomes are always that the number of chromosomes can change (euploidy).

Every one of these disorders deviates from the typical diploid number of chromosomes.

Therefore, Two creatures would have a total of 20 chromosomes because each has 10 chromosomes.

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What do plants use for energy

Answers

Answer:

light

Explanation:

from the sun

Answer:

your answer would be light.

Explanation:

Think of it as your phone. Without the charger your phone would die. So without the sun, the plant would die. And the sun it your light.

Which stages occur during incomplete metamorphosis?

A: Adult, larva, and pupa

B: Egg, nymph, and adult

C: Larva, nymph, and egg

D: Pupa, egg, and nymph

Answers

Answer:

B. Egg, nymph, and adult

Explanation:

Incomplete metamorphosis is a type of metamorphosis in which an insect hatches from an egg and then goes through several nymphal stages. Each nymphal stage looks like a small version of the adult but getting slightly bigger with age. At the final nymphal stage the insect then moults into the adult form.

In what ocean zone are you most likely to find creatures that are bioluminescent (create their own light)?
Question 1 options:
Epipelagic zone
Bathyal zone
Abyssal zone

Answers

The answer is the Abyssal zone

In the ocean aquatic creatures who are photosynthetic are found in the ____________ zone.
Question 1 options:
sublittoral

abyssal

none of the above

Answers

Hello there! :)

It's a pleasure to help you today!

Answer:

The Correct Answer is Option A. (sublittoral)

Explanation:

The region in the ocean where marine creatures are capable to do photosynthesis is the photic area, part of the photic area is in the neritic portion where is found the litoral and the sublittoral, being the sublittoral next to the epipelagic and pelagic zones. Therefore, between the alternatives the one that talks about a region where photosynthetic organisms are found is sublittoral, that's because less light to none can be available in deeper regions of the ocean, and the abyssal layer is the last in the model of ocean distribution layers.

Hope this helps! :)

Good Luck on your Assignment!

[tex]-Nature-[/tex]

What is metabolism?
A. interactions between atoms that are sharing,
donating, or receiving electrons
B. the rule that states that a full outer shell of an atom
contains 8 electrons
C. the total sum of energy of a person's endergonic and
exergonic reactions

Answers

Metabolism is chemical reactions inside of the body that changes food into energy. This means that the answer is A

Match the organisms with the type of symmetry they exhibit.

Answers

Answer:

Down below:

Explanation:

Radial: Person, butterfly, sea urchin, sea sponge, and beetle.

Bilateral: Starfish.

Unless it can be divided in half, it isnt radial.

Have a great day!

Please mark brainliest!

which province would be least likely to allow for extensive farming?

Answers

Which province would be least likely to allow for extensive farming?

ans :- The Blue Ridge Province isn't good for farming

Identify three distinct functions of the reproductive system.

Answers

Production of egg and sperm cells, hormones and nourishment are the functions of the reproductive system.

Three distinct functions of the reproductive system are

The reproductive system is responsible for three functions such as

It produce, transport, and nourish reproductive cells. It also responsible for the production of egg and sperm cells. It also produce certain hormones for the body.

So we can conclude that production of egg and sperm cells, hormones and nourishment are the functions of the reproductive system.

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help me answer the question please!

Answers

Answer:

rift valleys and new crust but there might be more

Directions: Based on the activity conducted, complete the table below. Write your answers in your Science notebook/answer sheet.



Answers

As the number of turns of coil increases, the greater the number of pins that will be attracted.

What is electromagnetism?

Electromagnetism is the physical interaction that exists between electric fields, magnetic fields and magnetic moments.

When a wire is coiled around a magnetic, an electromagnetic field is produced.

The greater the turns of the coil, the stronger the electric field and the force of attraction.

Therefore, as the number of turns of coil increases, the greater the number of pins that will be attracted.

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