During which process does heat transfer occur because of density differences in water or air?
A. Conduction
B. Pollution
C. Radiation
D. Convection
2. Explain your answer.

Answers

Answer 1

Answer: D. Convection

Explanation: As water's temperature increases in the presence of a heat source, it will become less dense and rise. As it moves up and away from the heat source, it cools and becomes denser and sinks.

Answer 2

Answer:

The correct answer is D. Convection.

Explanation:

Convection occurs due to the differences in density, and only happens in gases or liquids. The heat is transferred by the movement of a heated fluid, which is air or water.

Hope this helps! :)


Related Questions

38. In asexual reproduction, a single
parent passes copies of all of its
genes to each of its offspring.
When is asexual reproduction in
plants advantageous?
F. when the environment is
unstable
G. when there is little competi-
tion for resources
H. when plants are well adapted
to the environment
I. when there are multiple dis-
ease agents in the environment

Answers

H. when plants are well adapted is the correct answer maybe

Asexual reproduction in plants is advantageous when plants are well adapted to the environment that is present in Option H, as plants that are well adapted to their environment are more likely to produce offspring that can thrive in that environment as well.

What is asexual reproduction?

Asexual reproduction allows for the efficient production of genetically identical offspring without the need for finding a mate or investing energy in gamete production, and this can be particularly advantageous in stable environments where there is little change and plants can thrive without the need for genetic diversity. In plants, asexual reproduction can occur through various means, including vegetative reproduction, where new plants are produced from parts of the parent plant such as stems, leaves, or roots.

Hence, asexual reproduction in plants is advantageous when plants are well adapted to the environment that is present in Option H.

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Migrating fibroblasts can be treated with various chemical agents while they are migrating. Explain what you expect for each of the following conditions.
a. The cells are injected with large amounts of purified gelsolin, and the live cells are observed periodically.
b. The cells are treated with latrunculin A, the drug is washed out, and the live cells are observed periodically.
c. The cells are treated with a chemical fixative and prepared for electron microscopy. Their actin filaments are decorated with myosin S1 subfragments, and you examine in which direction the arrowhead-shaped decorations are pointing in the filopodia of the fixed cells.

Answers

Answer:

c

Explanation:

Which would be an adaptation for living in the tundra?

funnel shaped leaves to help water runoff
deep roots to go into the permafrost
hibernation to lower metabolism in the winter
large ears to release heat

Answers

Answer:

C: Hibernation to lower metabolism in the winter

Explanation:

Answer:

C is correct

Explanation:

Crossing over plays a critical role in increasing the genetic variation among offspring of sexual reproduction.

a. True
b. False

Answers

Answer:

T

Explanation:

I Got It Right.

why is the air temperature in the rain forest of Peru so warm?

Answers

Answer:

Because Peru is located between the equator and Tropic of Capricorn. Since it is in the tropics, one might expect Peru to be a country of extreme heat  and heavy vegetation.

Explanation:

Factors that control traits are called?

a. genes.
b. purebreds.
c. recessives.
d. parents

Answers

Answer:

A. Genes

Explanation:

Will give brainliest
A sequence of RNA is shown below:
CAA AAU GCG AUC 3

Using the codon chart below, what is the sequence of amino acids that is produced when this RNA is translated?
Choose 1 answer:
(Choice A)
A
Gln - Asn - Ala - Ile

(Choice B)
B
His - Asn - Ala - Met

(Choice C)
C
Gln - Asn - Pro - Tyr

(Choice D)
D
Val - Leu - Arg - Stop

Answers

Answer:

Choice D

Explanation:

When you translate the RNA, you replace C’s with G’s (and vice versa) and A’s with U’s (also vice versa). So, you get GUU UUA CGC UAG. Then you read the codon chart to get your answer. Hope it helps :)

The sequence of the amino acids which is being produced when this RNA is translated is Val - Leu - Arg - Stop. Thus, the correct option is D.

What is a Codon?

Codon can be defined as the sequence of three consecutive nucleotides in the nucleic acids such as a DNA or RNA molecule which codes for a specific amino acid. Certain codons are responsible for the signal of the start or end of the translation process.

Codons are universal in nature throughout the different living organisms. There are about 64 different codons which codes for 20 standard amino acids in the cell. There are three stop codons in the genetic code which stop the process of translation of protein molecules including UAG, UAA, and UGA.

The sequence of the amino acids which can be produced when this RNA is translated 5'-CAA AAU GCG AUC-3' will be Val - Leu - Arg - Stop.

Therefore, the correct option is D.

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Scientists conduct many types of scientific investigations. Their efforts often include fieldwork, surveys, models, and experiments. Which statement about scientific investigations is true?




They rarely involve the collection of data under controlled conditions.

They follow exactly the same steps because there is only one scientific method.

They include multiple trials to increase the consistency of the data that are collected.

Their primary focus seldom includes comparing or describing the unregulated world.

Answers

C.)
Scientists must use multiple trials because one trial will never show the completed data.

PLEASE HELP!!
Which of these is necessary for gas exchange in the respiratory system?
a.At least 30% oxygen in the air
b.The exchange surface must be moist c.The air must be cooler than body temperature
d.The blood cannot be moving ​

Answers

Most likely A only because your respiratory system needs oxygen

why many are dying because of having Co.vid Vaccine??​

Answers

Answer:

milllions of millions people

Which cell division phase is shown in the image?
A) metaphase
B) anaphase
C) prophase
D) telophase

Answers

Answer:

a

Explanation:

metaphase - the chromosome line up at the equator

Answer:

C. Anaphase

Explanation:

During anaphase, the chromatids line at the center

The interaction of the skeletal and muscular systems for movement is coordinated by which human body system.

A. Circulatory
B. Excretory
C.Respiratory
D.Nervous

Answers

Answer:

D: Nervous system

Hope this helps!

Chemostat culture with protozoa Tetrahymena thermophila protozoa have a minimum doubling time of 6.5 hours when grown using bacteria as the limiting substrate. The yield of protozoal biomass is 0.33 g per g of bacteria and the substrate constant is 12 mg l1 . The protozoa are cultured at steady state in a chemostat using a feed stream containing 10 g l1 of nonviable bacteria. (a) What is the maximum dilution rate for operation of the chemostat

Answers

Answer:

The correct answer is - 3.3 g/L.

Explanation:

It is known that if endogenous metabolism is not important then,

µnet = µmax = 0.693/doubling time.

Given:

doubling time = 6.5 hr, therefore,

µmax = 0.693/6.5 = 0.1/h

Formula:

First, maximum dilution rate Dmax,

Dmax = µmax*[S0]/{Ks + [S0]}.........(1)

Steady-state cell concentration, X

X = Yx/s{[S0] - KsD/(meumax - D)..........(2)

Solution:

Yx/s = 0.33 g/g-substrate;

Ks = 12 x 10-3 g/L; [S0] = 10g/L,

puting value in (1)

Dmax = 0.1 * 10 / (12 x 10-3 + 10)

= 0.1/h.

Now it is given that operating D is 1/2 of Dmax, therefore,

D in our case will be = 0.05/h

concentration of protozoa cells from equation (2).

Therefore, X = 0.33*{10 - 12 x 10-3 * 0.05/(0.1 - 0.05)} = 3.3 g/L.

Explain two (each) methods of micro-organism control for Malaria and Rabies

Answers

Explanation:

Vaccination and use of quinine drugs

I will give Brainliest!!!!!!!

Answers

Answer:

synthetic:.

chemically processed

not environmentally friendly

durable

nylon polyester plastic

resistance to insect

natural

natural obtained

environmentally friendly

not durable

cotton

food for insect

I am not sure about wool and food for insect sorry

hope it helped

following the laws of Convervation of matter, 10 grams of iron combined with 5 grams of sulfur will yield _____ grams of iron sulfide

Answers

Answer:

15

Explanation:

Since the law of conservation of mass applies to all the chemical reactions this will also end in 10+5 equalling 15 grams

If all the offspring of a particular cross have the genotype Gg, what must the genotype of the parents be?

Answers

Answer:

GG and gg

Explanation:

A rabbit population's birth rate is 200 rabbits born/year. The death rate is 150 rabbits dying/year.



Is the population of rabbits growing or shrinking? Explain by calculating the growth rate.

Answers

Answer:

It's growing

Explanation:

The growth rate is 50 rabbits per year

Which best summarizes the article? achieve 3000 New Life at. Yellowstone

A. New life has appeared in Yellowstone 20 years after wildfires scorched the park

B. Wildfires burned 1375 square miles (4 856 square kilometers) in and around Yellowstone Park in 1988

C. Oficials in Yellowstone re examined a policy that allowed wildfires in the park

D. Drought once dried out trees in Yellowstone and helped fires spread out of control​

Answers

The answer for your question above is A

Land breeze happens at night.

A. True

B. False

Answers

the answer is A therefore it is true

Answer:

true

Explanation:

the answer is A

land breeze is the opposite of sea breeze.

sea breeze accurs during the day

Land breeze occurs during night

i need help please!! | No links please !
The trees in a forest were cut down to make room for a housing development. Explain how this impacts the environment.

Answers

Trees are very important natural resources. They are the source of food, shelter and habitat. We get various woods, timber , fodder from the forest. Trees hold the soil firmly. Forests helps in conducting water cycle. If trees are cut down then environmental pollution will increase because trees purify the Air. Land pollution , air pollution , water pollution may increase. Biodiversity can be affected.


What is the function of histones- proteins that aide in dna replication

Answers

Answer:

Nucleosomes in turn are wrapped into 30-nanometer fibers that form tightly packed chromatin. Histones prevent DNA from becoming tangled and protect it from DNA damage. In addition, histones play important roles in gene regulation and DNA replication. Without histones, unwound DNA in chromosomes would be very long.

2. How much is the average temperature at depth of 10 km of earth surface?
A) 200 °C
C) 650°C
B) 900°C
D) 20°C​

Answers

How much is the average temperature at depth of 10 km of earth surface? Explanation: The heat is apparent from the increase in temperature of the earth with increasing depth below the surface. Although higher and lower temperature occurs, the average temperature at depth of 10 km is about 200oC.




Answer is 200 o c.

The average temperature at depth of 10 km of the earth's surface is 200°C. Thus, the correct option is A.

What is the average temperature?

An average temperature may be defined as the annual mean temperature of any geographical location which is estimated approximately by the average temperature of the maxima and minima for the warmest and coldest months of the year.

It is the principle that the increase in the depth below the surface of the earth ultimately leads to the rising of average temperature. This is due to the process of apparent heat.

It may be possible that higher or lower temperatures also occur. but the average temperature at depth of 10 km of earth surface should approximately remain 200°C. It is a factual type of question.

Therefore, the average temperature at depth of 10 km of the earth's surface is 200°C. Thus, the correct option is A.

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Please help honest answers only!! How could wildfire immediately impact competition in a forest ecosystem? (1 point)
Competition would decrease. Many ecosystems rely on wildfire to restore nutrients and germinate seeds; therefore, wildfire would
increase resources available, lowering competition
Competition would increase. Wildfire would increase the scarcity of resources, causing individuals to compete at higher rates.
Competition would remain the same. Wildfire would increase the scarcity of resources and decrease individuals competing.
effectively balancing each other out.
Competition would decrease. Wildfire would decrease the number of individuals competing for resources, making more resources
available per individual.

Answers

Answer:

I think its b. Competition would increase. Wildfire would increase the scarcity of resources, causing individuals to compete at higher rates.

Explanation:

not 100% sure tho

Wildfires can immediately impact competition in a forest ecosystem because wildfires would increase resource scarcity, causing individuals to compete at higher rates.

What are the consequences of forest fires?

In addition to destroying native vegetation and killing many wild animals, a forest fire can also cause serious financial damage and even endanger the lives of people and domestic animals.

With this information, we can conclude that wildfires can immediately affect competition in a forest ecosystem because wildfires would increase resource scarcity, causing individuals to compete at higher rates.

Learn more about ecosystem in brainly.com/question/1673533

20. Process through which pollutants get increasingly more concentrated each step up the food chain.
bloaccumulation
risk assessment
toxicity
biomagnification

Answers

Answer:

bioaccumulation of chemicals is the problem concerning all living organisms. This is the result of dynamic equilibrium between the uptake and elimination. The extent to which bioaccumulation occurs determines the toxic effects which are manifested. In some cases, the mechanisms of protection from certain undesirable substances deposited in special sites, to prevent their participation in the metabolic reactions, have evolved. The knowledge on bioaccumulation enables to assess the risk related with the presence of various chemicals in the environment, food, and at workplace and to present quantitatively the ability to control the use and emissions of chemicals.

Cells convert food into usable energy in a structure known as the powerhouse of the cell, or the ________. vacuole vacuole chloroplast chloroplast nucleus nucleus mitochondria

Answers

Answer:

Mitochondria are the "powerhouses" of the cell, breaking down fuel molecules and capturing energy in cellular respiration. Chloroplasts are found in plants and algae. They're responsible for capturing light energy to make sugars in photosynthesis

can someone help with this question its due in 10 minutes

Answers

Answer:

The waves have eroded the sand and then deposited some of it in the water.

Write the tRNA anticodons for the following strand of mRNA.
AGA GAU UCA GCU AGC ACG AUA

Answers

Answer:

UCU CUA CGA UCG UAU

Explanation:

Those are the answers above.

Crossed extensor reflex is a

Answers

Answer:

The crossed extensor reflex is a type of motor response that occurs to tactile stimulation of a lower limb. This, like other reflexes, is an indication of the proper integration and development of the central nervous system.

Explanation:

Stimulation on one side of the body can produce, in addition to the ipsilateral response. The crossed extensor reflex is a type of motor response, reciprocal innervation is involved: the flexor muscles of the stimulated limb contract at the same time that the extensors of said limb are inhibited. Coupled with flexion of the stimulated limb, the reflex produces an opposite effect in the contralateral limb: the extensor muscles are activated and the flexors are inhibited, this cross-extension reflex increases postural support during withdrawal of the painful stimulus.

TRUE or FALSE
Visible light has very short wavelengths.
If FALSE explain:


PLEASE HELP!!!

Thx

Answers

The answer is true: Visible light has very short wavelength
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