Carbon is found in different forms on the Earth. It is found as carbon dioxide in the atmosphere, as carbonate and bicarbonate salts in various minerals, as well as it occurs in the elemental form of diamonds and graphite. All biotic factors are based on carbon-containing molecules like carbohydrates, proteins, fats, nucleic acids and vitamins. Carbon is incorporated into life-forms through photosynthesis which is performed in the presence of sunlight by all life-forms that contain chlorophyll. Photosynthesis converts CO2 from the atmosphere or dissolved in water into glucose molecules. These molecules are either converted into other substances or used to provide energy for the synthesis of other biologically important molecules.
The use of glucose to provide energy to living things involved the process of respiration in which oxygen may or may not be used to convert glucose back into CO2. This CO2 goes back into the atmosphere again. The process of combustion also adds to the level of carbon dioxide in the atmosphere. This percentage is said to have increased when human beings started cutting down trees, burning fossil fuels, etc. on a very large scale. Thus, carbon is cycled repeatedly through different forms by the various physical and biological activities and this cycle is therefore called carbon cycle.
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Carbon cycle is a biogeochemical cycle in which the carbon atom continously moves in the atmosphere through different forms and processes.
What is Carbon cycle?The carbon cycle is the biogeochemical cycle which describes the process through which carbon atoms continually travel from the atmosphere to back to the Earth and then back into the atmosphere. This cycle goes on repeatedly. Since our planet and its atmosphere forms a closed environment, the amount of carbon in this system does not change, it only transforms from one form to another.
The processes which takes place in carbon cycle include photosynthesis, decomposition, respiration, and combustion. Carbon cycles from the atmosphere into the plants and living things. For example, carbon is a pollutant in the atmosphere which is present as carbon dioxide gas.
Carbon moves from the plants and animals to soil. When the plants and animals die, their bodies, wood, and leaves decays which being carbon into the ground. Some of this carbon is buried and become fossil fuels in millions of years. Carbon moves from living things to the atmosphere through respiration in which they inhale oxygen gas and exhale carbon dioxide gas.
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Which statements accurately describe atoms? Check all that apply.
1.Atoms cannot be divided.
4.Atoms were named in the fifth century BCE.
5.Atoms are the smallest unit of matter.
Answer:
5
Explanation:
5.Atoms are the smallest unit of matter.
Answer:
atoms are the smallest unit of matter
Explanation:
atoms CAN be divided into 2 halfs and ther were names AFTER bce
Definition Of polar molecules and nonpolar molecules please?
Answer:
Non polar molecules are symmetric with no unshared electrons. Polar molecules are asymmetric, either containing lone pairs of electrons on a central atom or having atoms with different electronegativities bonded.
Explanation:
When things are different at each end, we call them polar. Some molecules have positive and negative ends too, and when they do, we call them polar. If they don't, we call them non-polar. Things that are polar can attract and repel each other (opposite charges attract, alike charges repel).
What type of molecule is represented by the model below?
Carbohydrate
Steroid
Fat
Nucleic acid
2. The endocrine system includes specialized cells that help fight
bacteria and viruses.
a. True
b. False
why do hurricanes weaken when they hit land
Answer: Tropical cyclones usually weaken when they hit land, because they are no longer being "fed" by the energy from the warm ocean waters. However, they often move far inland, dumping many inches of rain and causing lots of wind damage before they die out completely.
6. The number of penguins in the north pole has been decreasing steadily by 5% every year.
Last year there were estimated to be 235,000 left in the wild. How many are there going to be
this year if the trend continues.
Answer:
Explanation:
223,250 Penguins
what objects could we find in the troposphere
Answer:
water vapor, dust and ash particles
Explain how one change in the Earth's biosphere can
cause changes in other Earth systems.
Answer:
interaction in the Earth's biosphere cause the change in other Earth system as the biosphere and atmosphere are dynamic, constantly reflecting these interaction. and Biosphere-Atmosphere Interactions focuses on the sources and sinks of greenhouse gases (GHGs), air pollutants, particulate matter, water, and energy between the Earth's surface and the atmosphere.
The Earth's biosphere is closely interconnected with other Earth systems, such as the hydrosphere (water), atmosphere (air), and geosphere (land). Changes in one part of the Earth's biosphere can have significant impacts on other Earth systems, and vice versa
What is a biosphere?Biosphere means interactions with each other and their physical environment.
For example, changes in land use, such as deforestation or urbanization, can affect the Earth's water cycle and climate. Deforestation, for example, can lead to increased runoff and erosion, which can alter the availability and quality of water in an ecosystem. Deforestation can also lead to an increase in atmospheric carbon dioxide, as trees and other vegetation absorb and store carbon dioxide during photosynthesis. This can contribute to global warming and climate change.
Similarly, changes in the Earth's climate, such as an increase in temperature or a change in rainfall patterns, can affect the biosphere. Warmer temperatures can lead to the range expansion of certain species and the loss of habitat for others. Changes in rainfall patterns can affect the availability of water for plants and animals, which can lead to changes in the distribution and abundance of species in an ecosystem.
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Helpppppppppp HELPPPP
What two things must happen for there to be a proxigean spring tide?
full moon and the closet perigee
new moon and the furthest apogee
new moon and the closest perigee
full moon and the furthest apogee
Answer:
Full or New Moon + Perigee
Why do we discuss crude birth and death rates in environmental science?
A. it is too difficult to calculate the regular birth rate
B. it is too difficult to calculate the regular death rate
C. allows us to compare the populations of different
countries
D. because that's the way we've always done it
PLEASE HELP WITH THIS ONE QUESTION
What systems supply food and oxygen needed for respiration?
A) excretory, digestive, and respiratory
B) excretory, respiratory, and cardiovascular
C) digestive, respiratory, and cardiovascular
D) digestive, excretory, and cardiovascular
help :(
Which of the following explains a similarity between the current farm bill and the Agricultural Adjustment Act (AAA) of 1933?
Both include payments given directly to farmers.
Both require the government to buy from certain growers.
Both set standard prices for produce commodities.
Both are designed to only benefit impoverished people.
Answer:
both set standard prices for produces commodities.
Answer:
Both require the government to buy from certain growers .Hope this helps you !!What is the location of a volcano that forms in the middle of the ocean called?
A) seismic wave
B) hotspot
C) fault line
D) earthquake
Answer: Answer is B a hot spot
Explanation:
process of diffusion
The diagram shows the reproductive system of a plant.
Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?
The diagram shows the reproductive system of a plant.
Which of the following best describes the interaction that occurs between a plant's reproductive parts during self-fertilization?
Pollen is released from the stigma and is transferred to the anther. A pollen tube grows down from the anther through the filament and fuses with the ovule, where the sperm fertilizes the egg.
Pollen moves from the ovule up through the style and is released from the stigma. The pollen is transferred to the anther, where the sperm fertilizes the egg.
Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
The correct answer is pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
This option correctly defines the interaction that occurs between a plant's reproductive parts during self-fertilization as it explains the pollination process and fertilization, when pollen grains are released then are transferred to the stigma the pollen tube is there that reaches ovule and the sperms fertilize an egg.
What is pollination?
Transfer of pollen from anther to the stigma of plants. Pollen is released from the anther and is transferred to the stigma. A pollen tube forms and grows through the style. The pollen tube reaches an ovule within the ovary where the sperm fertilizes the egg.
Thus it is clear that the answer explained above is correct describes the interaction that occurs between a plant's reproductive parts during self-fertilization.
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what are the differences between prokaryotic and eukaryotic nucleus
Answer:
Prokariotics neucleos is free floating while Eukariotics stay in place
Explanation:
Spelling is hard
normal body temperature
Answer:
98.6 is the normal body temperature
Answer:
Normal body temperature:
Normal human body temperature range is typically stated as 37 degrees Celsius.What are the three layers that make up the body of a Cnidarian?
A. endoderm, mesoderm, ectoderm
B. endoderm, mesoglea, ectoderm
C. ectoderm, mesoderm, mesoglea
D. endoderm, mesoglea, epidermis
Answer:
endoderm, mesoglea, ectoderm
Explanation:
took the test
Differences between bacteria and plants
Answer:
Main Difference – Plant Cell vs Bacterial Cell
Explanation:
The plant cell is a eukaryotic cell whereas the bacterial cell is a prokaryotic cell. The main difference between plant cell and bacterial cell is that plant cell contains membrane-bound organelles whereas bacterial cell lacks membrane-bound organelles.
Answer..
Salt water gargle can temporarily relieve a sore throat. One recipe calls for 3/4 teaspoon of salt in 1 cup of water. A second recipe calls for 1 2/3 teaspoon of salt in 2 cups of water. Which recipe will
taste saitier? Explain.
Answer:
I believe the one with 2 cups of water will be saltier
Explanation:
When you change the fractions to a common denominator, which is 12, you see the recipe with 1 cup should be half of the recipe with 2 cups. But the one with 2 cups is more than double the recipe with 1 cup.
What would happen if any of the biogeochemical cycles would break
Answer:
Excess phosphorus is polluting our environment while, ironically, mineable resources of this essential nutrient are limited. Globally, oxygen-depleted marine coastal 'dead zones' caused by nutrient-stimulated algal blooms continue to expand
Explanation:
What is a similarity between phases of moon wi2 and wk 4
is a proton positive or negative or electron
Answer:
a proton is positive
Explanation:
Answer:
A proton is a positive charge.
An electron is a negative charge.
A Neutron is a neutral charge.
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Which of the following are consequences of the Dust Bowl of the 1930s?
I. Banks extended loans to farmers to help rebuild impacted area
II. New policies to prevent the dust bowl from happening again
III. Mass migrations and widespread poverty and lack of food
I only
III only
I and II
II and III
Answer:
I think it is the first one
Explanation:
I
Describe changes in Earth's atmosphere and oceans
Over time.
The second atmosphere was created by volcanic activity. This atmosphere was rich
in oxygen
True
Or
False
Describe the function of the following organelles a. cell (plasma) membrane
b. cytoskeleton
c. cytoplasm
d. nucleus
e. nucleolus
f. Ribosomes
g. endoplasmic reticulum (rough and smooth)
h. vesicle
I. Golgi apparatus
j. lysosome
k. vacuole
l. centrioles (centrosome)
m. Cilia
n. flagella
o. mitochondria
p. chloroplast
q. cell wall
Answer:
the answer is b
Explanation:
Because I'm learning science and I looked at the answer for a while
I really need this question answered
Answer:
i don't know how i do ???????????????????
Asexual reproduction takes place through fragmentation in: a) Potatoes
b) ferns
c) yeas
t d) spirogyra
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct choice is ~
[tex] \sf d. \: spirogyra[/tex]A terrestrial biome has long, cold winters and short, cool summers. The precipitation is low, and the ground remains frozen for most of the year. Plants such as lichens and mosses that can withstand dry and cold conditions are found in this biome.
Which biome is characterized by these factors?
coniferous forest
savannah
tropical rainforest
tundra
ANSWER: tundra
Tundra biome is the terrestrial biome which is characterized by long, cold
winters and short, cool summers.
The tundra biome is found in the polar desert regions where there are long
periods of winter. There is very little precipitation which is usually in the
form of snow.
This biome contains less nutrients and doesn't support much plant or animal
life. Plants such as lichens and mosses which are able to withstand dry and
cold conditions are found in this biome.
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