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Which of the following are allotropes of carbon?
a) Buckminster Fullerene
b) Graphene
c) Footballene
d) Steel
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The right answer is option a (Buckminster fullerene).
Fullerene is one of the crystalline allotrope of carbon, which was discovered in 1985 collectively by the scientists Richard E. Smalley, Robert F. Curl, Sean O' Brien, James Heath and Harold Kroto. The name 'buckminsterfullerene' was given to the fullerene molecule discovered as a homage to the American architect and scientist Buckminster Fuller.
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MORE TO KNOW ABOUT FULLERENE:-Properties of fullerenes:
It is found in soot, interstellar dust and in carbon rich rocks.They are bad conductors of electricity.They are magnetic in nature.They are odourless.They can be soluble in solvents like chloroform, benzene or toluene.Uses of fullerenes:
They are used as lubricants.They are used as insulators.Some forms of fullerenes can conduct heat and electricity. So, they are used as superconductors and semiconductors.They are used in the process of drug delivery._________________________________
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High salinity, or salt content, is a problem for many soils. Which of the
following best describes the relationship between high levels of salt and
environmental water such as rainwater?
A. High salinity results in too little water.
B. High salinity results in too much water.
C. Too much water results in high salinity.
O D. Too little water results in high salinity.
SUBMIT
Answer:
D. Too little water results in high salinity
Answer:
Too little water results in high salinity.
Explanation:
I just did the quiz and I got it right.
Why are there tectonic plates?
Answer:
there are tectonic plates so the earth keeps evolving.
Explanation:
Fill in the boxes with the mutant DNA from the Normal DNA
what is this new island made from? sedimentary, metamorphic, or igneous?
Answer:metamorphic
Explanation:
The ovaries,cervix, uterus, fallopian tube, and vagina belong to the same.
a.cell
b.tissue
c.organ
d.organ system
Answer: organ system
Explanation: the all belong to the female reproductive system
the concentration of solute outside of the cell are_____than the inside of the cell
What happens to a cell in a hypertonic solution
Answer:
If you place an animal or a plant cell in a hypertonic solution, the cell shrinks, because it loses water ( water moves from a higher concentration inside the cell to a lower concentration outside ). A single animal cell ( like a red blood cell) placed in a hypotonic solution will fill up with water and then burst.
Ok, so this is what kangaroos used to look like...
Enjoy trying to sleeping tonight ;)
Answer:
Thanx
When a chemical change occurs, the identity of matter does not change.
True or False?
Answer:
true because matter can't dissapear or be created
Answer:
False
Explanation: Chemical changes are changes that occur when one substance is turned into another substance. The particles of one substance are rearranged to form a new substance.
Mushroom rocks are formed by ___________________
Answer:
wind erosion
Explanation:
The rocks are deformed in a number of different ways: by erosion and weathering, glacial action, or from a sudden disturbance. Mushroom rocks are related to, but different from, yardang. A mushroom rock, rock pedestal, or gour is a typical mushroom-shaped landform that is formed by the action of wind erosion.
mushroom rocks are corn as fungi
What is genotype is type 0 blood?
Answer:
Someone with blood type O has neither the A nor the B allele
Explanation:
The genotype must be AB. Someone with blood type O has neither the A nor the B allele. The genotype must be OO.
How does thermal energy affect the earth's layers?
Answer:
The thermal energy of the Earth remains from its formation and is continuously generated from radioactive decay of long-lived radionuclides in the Earths interior. The deeper the Earth layers the higher the temperature with the geothermal gradient of temperatures through the Earth’s crust on average as high as 25–30°C/km.
Explanation:
The thermal energy affect the earth's layers by forming a thermal gradient.
Thermal energy of the Earth:
Deep inside the earth the thermal energy is generated by the radioactive decay of long-lived radionuclides.
This creates a thermal gradient from core to surface of the earth. The temperature of the core is highest, then the manle is semi-solid or liquid.
The crust of the earth is solid and have relatively less temperature,
Therefore, the thermal energy affect the earth's layers by forming a thermal gradient.
To know more about Thermal energy of the Earth:
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What is the function of the Cornea?
Answer:
The function of the cornea is it acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye. The cornea contributes between 65- 75 percent of the eye's total focusing power.
Explanation:
LOTS OF POINTS AND BRIANLIESTTT 6. How is the liquid water different from the ice? *
1 point
The freezing point of the ice is lower.
The temperature of the liquid water is lower.
o
The average kinetic energy of the ice particles is lower.
a
The motion of the particles that make up the water is slower.
Answer:
the answer will be B : the tempreature of the liquid water is lower
How long does it take you to drive 500ft?
Answer:
at what speed are you going?
which of the following is a correct list of structures found both plant and animal cells
Answer:
Answer:
Cell Membrane
Cytoplasm
vacuole
Nucleus
Mitochondria
etc.
There are also other things that they have in common but those are the main ones.
what does the theory of evolution state
Answer: In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time
Explanation:
Which best determines the health of a lake used as a source of freshwater?
A. its depth and width
B. its temperature and pH
C.its location and depth
D.its temperature and depth
Answer:
B
Explanation:
A measure of the natural populations of algae, plants, fish, and other wildlife provides evidence of the health of a body of water.
A chemical which consists of just one kind of atom is always:
a molecule
an element
a mineral
a rock
how are dominant genes and recessive genes different ?
Plz Help
A population of wolves migrate North in search of food. As the wolves travel they enter a region that has long, snowy Winters. This makes them better able to sneak up on prey.
A.) Give two reasons that the population is not a Hardy Weinberg equilibrium.
C.) How are the allele frequency change in the wolf population
Answer:
A, This is the case of selective pressure of environmental factors like snow, due to which favored the expression of the allele that formed white coat phenotype. This is not a Hardy-Weinberg principle, in which no selective pressure is applied. The relative frequencies of the alleles change in the gene pool, due to selective pressure, and the expressed alleles are often significant for survival in those conditions.
b,HW equilibrium means no selective pressures like the long, snowy winters selectively favoring the white coat phenotype over the other coat phenotypes. Selective pressures change the relative frequencies of the alleles in the gene pool. It also means the population does not have either immigration or emigration to change the ratios of alleles in the gene pool The Hardy-Weinberg principle of genetic equilibrium tells us what to expect when a sexually reproducing population has no selection pressure, no gene flow, no nonrandom mating, not even genetic drift.
C, ?? I don’t know
Explanation:
Who was the first to try vaccination (NOT VACCINE BUT THE SIMILAR METHOD)
Answer:
Traditional Indian and Chinese medicinal
systems sometimes deliberately rubbed the
skin crusts from smallpox victims into the
the skin of healthy people. They thus hoped to
induce a mild form of smallpox that would
create resistance against the disease.
Answer:
Traditional Indian and Chinese medicinal
systems??
please answer this my friend needs help and I want to help her
Answer:
d
Explanation:
Please help ASAP !!
Answer:
1. Black
2. Yellow
3. Bb (or BB)
4. bb
Explanation:
So they breed two black fur coats and get 75% black fur. This means that Bb is 75% too, making it black fur. The 25% (recessive) would be yellow.
When a person doesn't get enough sleep, their immune system:
A Becomes stronger
B Becomes weaker
C Gains autoimmunity
D Can't remember diseases
Answer:
becomes weaker
Explanation:
because if you stay up all night you might sick
Explanation:
When a person doesn't get a enough sleep, their immune system can become weaker.
I hope this helps you.
A diagram that shows how scientists think different groups of organisms are related _________________ ________________.
Answer:
isolation complete seperation
Explanation:
I get that right yo day in class
define biomass plzzzzzzzzzz
Answer:
the total mass of organisms in a specific area or volume
Explanation:
hope this helps!!
Why are green plants considered producers?
Green plants directly absorb sunlight to make energy.
Green plants contain chlorophyll.
Decomposers consume green plants.
Green plants are eaten by secondary consumers.
Answer:
The organisms that are capable of preparing their own food from simple inorganic substances like carbon dioxide and water by using sunlight energy in the presence of chlorophyll are called producers. The green plants synthesize their own food through the process of photosynthesis and thus are called the producers.plants produce food for themselves, they are known as producers.what is the advantage and disadvantage of the Ocotillo and Hummingbird relationship
Advantages:
The plant is an integral member of the regional desert ecosystem and native pollinators such as hummingbirds and carpenter bees consume ocotillo nectar for nutrients. The hummingbird and the ocotillo have an important plant-pollinator relationship, as the hummingbird relies upon the flowers for a nectar source.
The relationship between Ocotillo and Hummingbird is an example of a mutualistic relationship, which means that both species benefit from each other's presence.
What are the various advantages and disadvantages of the relationship ?The advantages and disadvantages of this relationship can be described as follows:
Advantages:
Ocotillo provides a source of nectar for hummingbirds, which is an important source of energy for their high metabolic rate.
Hummingbirds are efficient pollinators of Ocotillo flowers, which helps to ensure their reproduction and genetic diversity.
Ocotillo provides a nesting site for hummingbirds, where they can raise their young in safety from predators.
Disadvantages:
The relationship between Ocotillo and hummingbirds is specific and may not be beneficial to other species of plants or animals.
Ocotillo is adapted to living in arid environments and may not provide a suitable habitat for some other species of birds or animals.
If the population of either Ocotillo or hummingbirds were to decline significantly, it could affect the survival of the other species in the mutualistic relationship.
Overall, the advantages of the Ocotillo-Hummingbird relationship outweigh the disadvantages, and this mutualistic relationship is an important part of the ecosystem in which they both live.
Learn more about mutualism at :
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The photograph shows a community. What kind of community is shown?
A. A mountainous community
B. An agricultural community
C. A metropolitan community
D. A coastal community
Mitosis creates how many daughter cells