why are fossil fuels supplies limited​

Answers

Answer 1
they are limited because many fossil fuels must be refined before being used. Years ago, when prehistoric animals and plants died, layers of rock and dirt gradually buried them. ... Other resources, like fossil fuels, are called nonrenewable, which means they have a limited supply and are not continuously being made or they are made very slowly
Answer 2

Answer: The coal, oil and natural gas we are consuming now are the remnants of plants, trees and animals that were living hundreds of millions of years ago. There is no way to replace them, as conditions on Earth are much different now.

Explanation: Mines and wells are being depleted much faster than they were a hundred years ago when demand was much less-- fewer people, fewer cars, fewer planes. . . and people believed there was an endless supply. Many of those mines and oil wells are now empty.


Related Questions

Is a Heterotroph a araebacteria or a eubacteria

Answers

I believe it is a araebacteria

explain why cells don't just continue to grow bigger as the organisms grow bigger. Why do cells divide? Write in complete sentences

Answers

Answer:

Cells divide to make sure the organism is growing and it helps the organism get all the stuff they need to live.

Explanation:

Cells have specific dna is in these cells to help the organism grow and keep making life as we know it, multiple cells die for us living


As thermal energy is added to a substance, which of the following changes can be predicted?

-The temperature of the substance will decrease.

-The kinetic energy of the particles will increase.

-The pressure exerted on the substance will increase.

-The spacing between particles will decrease.

Answers

Answer:

I think its B

Explanation:

Vibration of individual particles will increase.

Which quality makes Earth particularly well-suited to support life?
O A. Its axis precesses about every 26,000 years.
O B. It is roughly the same age as the sun.
O C. It features a wide variety of topographies.
OD. Its distance from the sun helps maintain a narrow temperature
range.

Answers

I would say D narrow temperature. Most other planets are too hot or cold to sustain life.

how effective are vaccines

Answers

Answer:pretty effective helps your body get preapeared when you get attacked by the real thing

Explanation:

Which gas in Earth's atmosphere helps living things make proteing?
O oxygen
O nitrogen
water vapor
O carbonoxide

Answers

The answer is carbon oxide

how to write ammonium oxide

Answers

Umm I really don’t no at all

Answer:

(NH4)2O

Explanation:

Nitrogen>Hydrogen>Beryillum>Carbon Oxygen

Explain how the structure (order) of DNA can determine the structure of a protein. Use as many of the following terms as you can in your explanation: DNA, base pairs, mRNA, tRNA, ribosome, amino acid, protein, codon, anticodon

Answers

The stages of DNA bases in a molecule can determine the order of amino acids in protein molecules. Groups of three bases called triplets represent different amino acids. This is the basis of the genetic code . A sequence  of bases (genetic information) on DNA that codes for a protein is called a gene

Protein synthesis is the generation of proteins by cells that employ DNA, RNA, and different enzymes.

What is protein synthesis?

It generally includes transcription, translation, and post-translational events, such as protein folding, modifications, and proteolysis the process of protein synthesis.

the mRNA contains the sequence of nucleotides transcribed from the DNA that defines the sequence of amino acids that a synthesized protein will have.

In mRNA, codons are triplets of nitrogenous nucleotides that code for amino acids and using ribosomes mark the beginning and end of protein synthesis.

Therefore, in contrast to mRNA codons, anticodons are triplets of nucleotides found in transfer RNA (tRNA). The linking of amino acids to the polypeptide chain being produced is carried out by tRNA. 

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white blood cells with long lobed nuclues are called....?

Answers

Answer:

polymorphonuclear leukocytes

PLEASE HELP! - Describe why carbon, hydrogen, oxygen, nitrogen, & other elements can combine. Describe the results of these combinations.

Answers

Answer:

2hydogen + 1oxygen = H2O = water

Explanation:

The answer lies with carbon's unique properties. Carbon has an exceptional ability to bind with a wide variety of other elements. Carbon atoms can form multiple stable bonds with other small atoms, including hydrogen, oxygen, and nitrogen. Carbon atoms can also form stable bonds with other carbon atoms.

Select all that describe features of prokaryotes.
A. Prokaryotes don't have a nucleus
B. Prokaryotes absorb nutrients directly from the water they live in
C. The cells are surrounded by a cell membrane
D. Prokaryote Organelles are free within the cell
E. Prokaryotes are multicellular organisms

Answers

Answer:

A. Prokaryotes don't have a nucleus

D. Prokaryote Organelles are free within the cell

Explanation:

Answer:

A

D

B

Explanation:

Hope this helps

:)

please answer!! ASAP

1. What is biodiversity?
a) The animals that live only in rain forests.
b) The rich variety of live organisms in every
ecosystem on Earth.
c) The animals and plants species that live
only in your backyard.

2. Why do we need biodiversity?
a) it provides us with the food we need to eat
b)it provides us with virtually all the things we need to stay alive
c)so we have plenty of trees to use for fuels and materials

3.which of the following places has the highest biodiversity?
a)madagascar &indian ocean islands
b)tropical andes
c)caribbean islands

4. how many biodiversity ‘hotspots’ are there in the world?
a)12
b)25
c)34

5. in these ‘hotspots’ how much of the worlds species are found there?
a)10%
b)25%
c)50%


6. what does ‘endemic’ mean?
a) when a lot of people fall ill
b) when something is only found in one place
c) when a disease spreads throughout the world

7. why is biodiversity under threat?
a) habitat destruction
b)introduction of exotic species
c) both of the above and more


8. what can you do to help save biodiversity?
a) reduce, reuse, recycle
b) plant trees, clean local rivers and parks and protect habitats
c) all of the above

Answers

1.B

2.B

3.A

4.36

5.B

6.C

7.C

8.C

thanks me

Describe the relationship between a tree and a cow. (Use terms like oxygen, carbon dioxide, photosynthesis, and cellular respiration)

Answers

Answer:

Without the tree the cow couldn't live.

Explanation

The cow breathes in oxygen and breathes out carbon dioxide. The tree uses cellular respiration and photosynthesis in order to take carbon dioxide (which the cow produces) and make it into oxygen (which the cow needs to breaths).

When something rust,

Answers

Answer:

It gets heavier

Explanation:

The mass of iron increases as rusting happens when oxygen combines with iron therefore the mass increases.

Answer:

It gets heavier

Explanation:

The mass of iron increases as rusting happens when oxygen combines with iron therefore the mass increases.

According to Mendel's Law of Dominance, an individual with a heterozygous genotype will have...

A. both the dominant and recessive phenotype.

B. the recessive phenotype.

C. a medium phenotype.

D. the dominant phenotype.

Answers

Answer:

A. both the dominant and recessive phenotype.

Explanation:

The answer is A) both the dominant and recessive phenotype.

In any given population, certain individuals are more able than others to adjust to environmental changes. Some of these changes are temperature, food supply, pollution, and
A.
increase in offspring.
B.
change of habitat.
C.
decrease of predators.
D.
loss of population group.

Answers

People could also adjust to the change of habitat.

Answer: B change of habitat.

how does the muscular system work with the respiratory system?

Answers

Answer:

Respiratory System and the Muscles of Inhalation and Exhalation. The muscular and nervous systems enable the involuntary breathing mechanism. The main muscles in inhalation and exhalation are the diaphragm and the intercontinental (shown in blue), as well as other muscles.

What can you infer about the available matter and energy at each level?

Answers

Answer:

Matter and energy are distributed differently in different ecosystems. For example, a single tree in a rain forest would be greatly outnumbered by the primary and secondary consumers, such as the insects and birds, that live on that tree. The upper layers of the pyramid of numbers would be larger than the bottom layer representing the single tree.

Match the trend in American eating habits with the related meal.
mini-meals in restaurants
a meal category in sharp decline
a meal most people report eating
:: snacks and appetizers
:: homemade meals
:: breakfast

Answers

mini meals - snacks and appetizers
a meal category in sharp decline - homemade meals
meal most people report eating- breakfast

In one type of dog, black spots (B) are dominant over brown spots (b) and long tails (L) are dominant over short tails (l). Use the dihybrid cross for parents with the genotypes BBLl and BbLl and determine the likelihood of offspring with the genotype BBLl.


BL Bl BL Bl

BL BBLL BBLl BBLL BBLl

Bl BBLl BBll BBLl BBll

bL BbLL BbL BbLL BbLl

bl BbLl Bbll BbLl Bbll


A. 1/16

B. 2/16

C. 3/16

D. 4/16

Answers

The branch of biology which deals with the study of genes and inheritance is called genetics. There are two types of alleles presents, these alleles are as follows:-

DominantRecessive

The cross is used to check the outcomes of the mating between two parents.

In a dihybrid cross, the parent is mates with the other partner to study the two characters.

According to the question, the possible outcomes of the BBLI is 4/16.

For more information, refer to the link:-

https://brainly.com/question/4430122

Answer:

your answer is D. 4/16

Please help ASAP 65 POINTS IF YOU GET IT RIGHT!!!

Brendan made a chart to categorize the characteristics of animals.

An empty 2-column table titled Characteristics of Animals. Column 1 is labeled Always. Column 2 is labeled Sometimes.

Which phrase should be written in the column titled "Sometimes”?

Are multicellular
Have membrane-bound organelles
Produce their own food
Display an asymmetrical body plan

Answers

Answer:

Im gonna say produce their own food, i may or may not be wrong. sorry

Explanation:

Animals are multicellular and have membrane-bound organelles, sometimes display an asymmetrical body plan and sometimes they produce their own food. Thus, the correct option are C and D.

What is an asymmetrical body plan?

Animals are the organisms which are multicellular eukaryotic organisms. Animals have all membrane-bound organelles such as mitochondria, chloroplast, etc.


Animals sometimes produce their own food. Animals also are asymmetrical sometimes because they have disproportionate arrangement of body parts, which exhibits no pattern. However, animals are also symmetrical sometimes because of the proportional arrangement of body parts and pattern.


Therefore, the correct option are C and D.

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>> what specific function does the term, respiration, refer to in animals?

Answers

Answer:

respiration is a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.

The processes involved in the rock cycle include all of the following EXCEPT:
compaction
O condensation
O weathering
O erosion
1

Answers

Answer:

Condensation

Explanation:

Condensation is about water not rocks.

Condensation is the answer

why is it important for environmental scientists to have a background in many fields of study​

Answers

Answer:

With these rapid changes, there is a need to study each step that may alter the environment so that the natural ecosystem may still be protected or replaced by a better one. Environmental science is important to save our world from destruction. Because of man's abusive actions, the environment is not safe anymore.

What does the bottom question mean? Will give extra points for right answer only

Answers

Answer:

its talking about how much can the red line go up till u hit its temp limit i wish i could help more but i cant see hardly anything to tell u the complete anwser

Explanation:

Answer:

Compare the temperture to the 'recommended temperature limit' line.

Explanation:

'how does....relate' also means compare/describre how they affect one another.

11. Many plants use brightly colored flowers to attract insect pollinators.
Which is the MOST likely conclusion about a plant that has very small flowers that
are hard to see?
CLE

Answers

Answer: Pollen can be blown in the wind which the bees/other pollinators can follow to get to the flowers.

Explanation: Plants rely on bees and other insects to reproduce and so they have adapted, over time, to become more attractive to them. Bees are drawn to plants with open or flat tubular flowers with lots of pollen and nectar. A flower's scent can have particular appeal to bees, and its bright colors or pollen being blown in the wind may lure the bees in.

where are peripheral proteins located

Answers

Answer:

Explanation:

Peripheral membrane proteins are found on the outside and inside surfaces of membranes, attached either to integral proteins or to phospholipids. Unlike integral membrane proteins, peripheral membrane proteins do not stick into the hydrophobic core of the membrane, and they tend to be more loosely attached.

Animals are made up of which type of cells?

Answers

Animal cells are typical of the eukaryotic cell, so that's what they  are made out of hope it helps

Explanation:

Answer:

dog

Explanation:

How is it that all cells have the same DNA, but there can be many different types of cells?

Answers

Answer:

each cell deploys its genome and play different role

Explanation:

What does it mean that there is both unity and diversity of life at the level of the cell?

Answers

Answer:

All livings organisms are with unicellular origin. The cells have a common structure like cell membrane, DNA , RNA and necessary enzymes. The genetic code of protein synthesis is almost similar with few exceptions. This shows unity in design.

Further evolutionary changes took place due to environmental stress. The genome of each species is designed as per need and efficiency. This is diversity.

This is true with all five kingdoms of life that is monera, protista, fungi, plantae and animalia.

Explanation:

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