There are different forms of energy and one form of energy can be converted into another. When we light a wax candle, the process is highly exothermic and on burning, the chemical energy of the wax gets converted into heat and light. A good source of energy is to be selected for the choice of work to be done. In ancient times, wood was the most common source of heat energy. We, in our daily lives, use various energy sources for doing the work. Nowadays we use diesel and electricity to run trains. We also use fossil fuels in vehicles which has some serious disadvantages, mainly air pollution. The recent example of air pollution was ‘Smog’ in the National Capital Region of Delhi. This pollution was a result of burning ‘Parali’ in northern states of the country, which affected the eyes and also caused serious respiratory problems.
4(a) State the energy conversion that takes place when we light a wax candle. 1
4(b) List two criteria of selecting a source of energy for a specific work. 1
4(c) Write the names of two fossil fuels. 1
4(d) why are we looking at alternate sources of energy? 1

Answers

Answer 1

Answer:

shiii tbh thats hard

Explanation:


Related Questions

1. Represent Relationships:
Use the data table to complete a graph of the
changes in the deer population. Then
describe the trend in the graph.

2. SEP Interpret Data:
What factors do you think might be responsible for the
changes in the deer population?

Answers

Answer:Some of these include: disease, predator/prey relationships, habitat destruction and degradation, food availability, hunting pressure, and weather conditions. Deer populations are not static; they continuously change in response to many factors.

Missing: SEP ‎| Must include: SEP

Explanation:

Select all that apply: What are some of the steps of the
scientific method mentioned?

Answers

Answer:

Make an observation.

Ask a question.

Form a hypothesis, or testable explanation.

Make a prediction based on the hypothesis.

Test the prediction.

Iterate: use the results to make new hypotheses or predictions.

Explanation:

After concluding his research, which statements would Virchow agree with? CHECK ALL THAT APPLY.

Living things come from nonliving things.

Cells can come from nonliving materials.

Frogs can come from mud.

Living things can only come from living things.

Cells come from pre-existing cells.

Answers

Answer:

Living things can only come from living things.

Cells come from pre-existing cells.

Explanation:

Rudolf Virchow a german physicist, biologist and many more, In 1855 Vproposed that cells come from pre-existing based on his observations in exact words 'Omnis cellula e cellula', which translates into all cells arise from pre-existing cells.

He also said the living things come from living things and do not arise from nonliving things or matter. His discoveries made possible the cell theory

First one to answer gets brainly! Just answer in one paragraph please

Should all nations face the same percentage reductions in emissions, or should some nations carry more of the burden than others ?

Answers

Answer:

all nations should face the same percentage reductions in emissions

Explanation:

Describe how transposable elements create mutations within an organism and how transposable elements facilitate chromosomal rearrangements.

Answers

Answer:

Transposable elements are discrete segments of DNA that can be excised and reintegrated to another site in the genome, these can inactivate the gene in which they reside, cause chromosome breaks, and / or transpose to a new location within the genome.

Explanation:

Transposable elements are fragments of DNA that have the ability to jump from one part of the genome to another. While most of the DNA is always in the same place surrounded by the same neighboring pieces of DNA, mobile elements move from one place to another causing many changes or mutations. When a transposon moves through the genome, it can insert into a vital gene, disrupting its function, or into a location near vital genes, causing erroneous activation or inactivation.On the other hand, there can be chromosomal rearrangements due to transposons of the same family with complementary sequences that are separated in the genome and that by sequence homology match. This can lead to ectopic recombination. Large-scale rearrangements induced by mobile elements are considered a particular class of recombination events that influence genomic plasticity.

Whats planets rotates in a reclining position?

Answers

Answer:

Jupiter. Mercury. Saturn

Explanation:

which will cause an increase in runoff and infiltration in an area​

Answers

Answer:

More slopes on the ground, opened areas or potholes/sinkholes

Explanation:

A sequence of amino acids is formed during the process of _____.

a
transcription
b
translation
c
intron removal
d
replication

Answers

Answer:B

Explanation:

B translation..... because in the translation is where the amino acid is rlly formed :)

Gareth is having a difficult week. He is late submitting a term paper, his car broke down three times, he has very little money in the bank, and he had an argument with his roommate. Because of all of this, Gareth is feeling disturbed and upset. In this scenario, Gareth's disturbed state of mind indicates that he is most likely to be

Answers

Answer:

stressed

Explanation:

What are the 2 types of fatty acids (and explain what each means, and an example)?

Answers

Answer:

saturated and unsaturated fatty acids

Explanation:

Saturated fats are a type of fat in which the fatty acid chains have all or predominantly single bonds.Rich sources of dietary saturated fatty acids include butter fat, meat fat, and tropical oils.

An unsaturated fat is a fat or fatty acid in which there is one or more double bond in the fatty acid chain. these include avocados, olive oil, fatty fish and nuts or seeds.

What tools can be used to make observations of the sparkles of a mineral?

Hammer
Streak plate
Flashlight
Steel nails

Answers

Answer: Flashlight

Explanation: The sparkles of a mineral is also known as it's luster. For example, a diamond when in the sun or under a source of light will shine due to the reflection of the sun. A flashlight is also a tool that can be used to observe the sparkles of a mineral, or in other words it's luster.

Hope this helps! <3

What are the Complementary DNA base pairs: ATTGGCCTAGC *

Answers

Answer:

taaccggatcg

Explanation:

Which of the following is NOT part of the CIRCULATORY
system?

O artery
O capillary
O platelet
O alveoli

Answers

Answer::artery, atrium, blood vessel, capillary, circulatory system, heart,

Which material would get electrons from the source to the load the fastest

Answers

Answer:

However, graphene has far fewer electrons than copper, so in graphene the electrical current is carried by only a few electrons moving much faster than the electrons in copper." In semiconductors, a different measure, mobility, is used to quantify how fast electrons move.

Answer:

D

Explanation:

D

Which of the following factors most likely triggers arousal from hibernation?

A) the sun rising in the morning B)snow falling onto the ground
C) the environmental temperature dropping below 0 °C
D) a significant decrease in the animal's respiration rate

Answers

Answer:

A) the sun rising in the morning

Explanation:

In biology, hibernation refers to a physiological state where a plant or animal is metabolically inactive in the winter period (characterized by extreme cold). As far as the animal or plant is concerned, the cold weather during winter is an adverse condition, hence, they undergo hibernation in order to conserve their energy.

According to this question, arousal or wakening from hibernation would be triggered in the presence of heat source, which in this case is the SUN RISING IN THE MORNING.

This site isn't exactly for talking but whatever.

Are you against or for transgender identities, and why? I'd love to have a civil chat no matter your opinions. Also please put your pronouns if you use them so everything is easier.

- A trans guy (he/him)

Answers

Answer:

i am 100% FOR them. i myself am transgender so i mean i kinda have to support my community haha. im ftm trans : ) he/him

Which of the following is NOT a property of water?
O A) It is a good solvent.
OB) It is denser when frozen than when liquid.
OC) It resists temperature changes.
OD) it is cohesive.
O El It can be found as a solid. liquid. or gas.

Answers

Answer:

It is denser when frozen than when liquid.

Explanation:

Ice is actually less dense than water. The lattice arrangement of ice allows water molecules to be more spread out than in a liquid, making ice less dense than water.

Hope that helps.

How many of these structures are visible on the plant diagram?

Answers

On plant diagrams it can show the root,stem and the petals and the inside of the tree I think

The bacteria we are growing contain both chromosomal DNA and plasmid DNA. Both are circular, but they are different. In 3-5 sentences, discuss at least 3 differences between the chromosomal DNA and plasmid DNA found in our bacterial cells.

Answers

Answer:

Please find the explanation of the differences between chromosomal DNA and plasmid DNA below

Explanation:

As stated in this question, a bacteria cell contains both chromosomal or genomic DNA and an extra chromosomal DNA called PLASMID. They are both circular in shape but are different from one another in the following ways:

- Chromosomal DNA is larger in appearance than the plasmid DNA, hence, they differ in terms of size.

- Chromosomal DNA encodes all the information in the genome of the bacterial cell necessary for their growth and development while plasmid DNA encodes few additional beneficial characteristics such as antibiotic resistance, virulence etc.

- Chromosomal DNA is wrapped around histone proteins to form the chromosome structure but plasmid DNA is naked and not wrapped around histone proteins.

A complete carbohydrate is a macromolecule is it a large or small molecule

Answers

Answer: Term Meaning

Monomer A molecule that is a building block for larger molecules (polymers). For example, an amino acid acts as the building blocks for proteins.

Polymer A large molecule made of repeating subunits (monomers). For example, a carbohydrate is a polymer that is made of repeating monosaccharides.

Explanation:

Cleo found an arthropod in a grassy field. The arthropod has six pairs of legs, two pairs of antennae, two body sections, and an open circulatory system

Q: Which conclusion is best supported by the information?

A: The arthropod is an arachnid because it has two body sections and an open circulatory system.
B: The arthropod is an arachnid because it has six pairs of legs and two pairs of antennae.
C:The arthropod is a crustacean because it has two body sections and an open circulatory system.
D: The arthropod is a crustacean because it has six pairs of legs and two pairs of antennae.

Answers

Answer: C:The arthropod is a crustacean because it has two body sections and an open circulatory system.

Explanation:

Crustacea are the arthropods. which includes the crabs, shrimp, barnacles, and others. These are the insects. These are the invertebrates. They have hard exoskeleton and segmented body forms. They are bilaterally symmetrical animals. They have four to six pairs of appendages which are jointed. Open circulatory system is present due to lack of developed blood vessels circulation.

Answer:

c

Explanation:

got it right on enginuity

Are the fatty acid tails saturated or unsaturated?
and What type of lipid is shown in the picture?

Answers

Answer:

The fatty acid tails saturated or unsaturated is discussed below in details.

Explanation:

Fatty acids contain a carboxylic acid association and a great hydrocarbon series, which can either be saturated or unsaturated. A saturated fatty acid tail only contains carbon-carbon individual bonds, and an unsaturated fatty acid has at the slightest individual carbon-carbon twice or triples bond.

PLEASE HELP!! I WILL MARK BRAINLIEST!! plz ignore the one I choose bc it’s probably wrong

Answers

It’s The Last One..........

Your option(the third) is correct since all the cells in an organism have the same genetic material

the first one is false because all cells contain the same dna

the second one is false because the dna stays the same

the fourth one is false because sea animals have different dna

Appendages in arthropods are most similar to ______ in humans

a: bones
b: arms
c: chests
d: mouths

Answers

Answer:

a

Explanation:

Answer:

Bones

Explanation:

which of the following best describes how the potential is affected by the structural change in the gene?

Answers

Answer:

A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes.

Explanation: did the test and got it right

Why is the tundra the most fragile biome?
a- extreme conditions
b-large human population
c-vast food web
d-large amounts of rain, washing pollutants into water sources

Answers

Answer:I’d say a

Explanation:

It’s a super cold place

Answer: I’ll say A only because...


Explanation: It’s extremely cold there

please look at this picture and help me out!

Answers

Answer:

D

Explanation:

from a particular location on earth, why can we see many more total eclipses of the moon that the total eclipses of the sun?

Answers

Answer:

Hiii! I'm here to help!

Explanation:

The Moon is always in the same place in our sky while the Sun moves around the sky. The Moon is much bigger in the sky than the Sun. The line-up of the Earth Moon and Sun needed for a lunar eclipse happens many many times more often than what is needed for a solar eclipse. A total lunar eclipse is visible over a much larger part of the Earth's surface than a total solar eclipse.

Which of the following is a molecule?
A. Argon
B. Water
C. Nitrogen
D. Uranium

Answers

Answer:

Argon- a chemical element

Water- polar molecule

Nitrogen- chemical compound

Uranium- chemical element

Hope this helps! :)

Please give brainliest

:)

Explanation:

In conclusion B. water is a molecule

If the paramecium is then placed in a hypertonic environment, which of the following will occur?

Answers

Answer:

To maintain homeostasis, the paramecium must pump out large amounts of water using its contractile vacuole. If the paramecium is then placed in a hypertonic environment, which of the following will occur? A Water will diffuse into the paramecium.

Explanation:

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