1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anvisha [2.4K]
3 years ago
7

Fossil fuels are the compressed remains of ancient organisms like plants or dinosaurs. they cannot be recycled. once they are us

ed, they are gone. which of these is a fossil fuel?
a. corn
b. coal
c. timber
d. sunshine
Biology
1 answer:
Tju [1.3M]3 years ago
3 0
B is the answer because the rest of them u can get back but not coal
You might be interested in
What are the reservoirs of carbon?
Zinaida [17]

Answer:

Heyoooo!

The reservoirs are the atmosphere, the terrestrial biosphere (which usually includes freshwater systems and non-living organic material, such as soil carbon), the oceans (which includes dissolved inorganic carbon and living and non-living marine biota), and the sediments (which includes fossil fuels).

Explanation:

Hope this helpsss!!!

7 0
3 years ago
What is a scientific theory? The sentences above help to describe a scientific theory. One sentence is not quite
MAXImum [283]

Answer:

Original sentence: When new information does not support a scientific theory, the theory  may be revised or sometimes rejected.  

New changed sentence: <em>When the results of the experiment do not support a hypothesis, the hypothesis must be revised or rejected to state a new scientific theory.</em>

Explanation:

The scientific theory is a conceptual framework used to explain facts or phenomena and to make predictions.

The theory is fundamental to science because it allows scientists to organize and understand observations.

The construction of a theory begins with a hypothesis. The scientist believes that a phenomenon occurs in a certain way, so he/she performs observations under the scientific method to prove that his/her hypothesis is valid or not valid. The systematization of the observations and the empirical data collected might derive from a scientific theory that explains the analyzed phenomenon.

A scientific theory is a knowledge that has been contrasted in several ways.

3 0
3 years ago
Why do sperm cells contain so many mitochondria?
sp2606 [1]
<span>a. Each mitochondria is needed to store a full copy of the male’s chromosomes</span>
8 0
3 years ago
Where do scientists obtain adult stem cells?<br> saliva<br> pancreas<br> skin<br> bone marrow
Alex17521 [72]
<span> Embryonic stem cell research is kind of a dead area now since there is no way to control the differentiation. Most research is being done on adult stem cells to help map and control the differentiation process.

Stem-cells from aborted fetuses - The government doesn't sponsor this, if it is done it is by private companies not located in the USA. You could try researching umbilical cord stem cells to be somewhere near your topic. They come from the afterbirth of normal deliveries.

You could do a much easier report by covering cloning of mice through stem-cell technology. It is happening and helping scientists understand diseases. </span>
6 0
3 years ago
The ____________ secretes fsh and lh, which regulate the production of reproductive hormones by the ovaries and the testes.
Bezzdna [24]
Anterior Pituitary gland
7 0
3 years ago
Other questions:
  • Describe the eye of a hurricane
    6·1 answer
  • Which autonomic nerve innervates the urinary bladder, uterus, and external genitalia?
    11·2 answers
  • Which observation most likely indicates the presence of a black hole?
    13·2 answers
  • What would you expect the F1 generation flies to look like if two scarletmutants were crossed with each other?
    11·1 answer
  • Compared with all other states, Alabama ranks __for having the most number of extinct species:
    6·1 answer
  • How can humans balance the interests of ranchers who want to control prairie dog populations
    14·1 answer
  • Sometimes aquaculture operations can lead to oxygen depletion near the benthos as organic matter is consumed. What would be a pr
    15·1 answer
  • Help pls, thanks. Have a great day, Stay safe.<br> Wash your hands
    14·2 answers
  • Summary of the cell membrane structure.
    12·1 answer
  • Scientific question: Why does a dog circle its
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!