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
yuradex [85]
3 years ago
6

(06.03 MC) What is a reason that fossil fuels are often used as an energy source?

Biology
2 answers:
kaheart [24]3 years ago
5 0

Answer:

They are often used as an energy source because they are found everywhere and because it has a high energy output. Fossil fuels can be found where an animal dies, coal is found, a tree is burned etc. This makes them highly popular and strived for. They also let off a high amount of energy when burned so it is used for automobiles,electricity, cooking and more.

Explanation:

Setler [38]3 years ago
4 0

Fossil fuels are often used as an energy source because it is Easily and abundantly available

<u>Explanation</u>:

Fossil fuels are formed by natural processes, due to anaerobic decomposition. It is rich source of carbon. We depend on these sources to meet our daily requirement. These are renewable source of energy.

Fossil fuel are available abundantly and are easy to obtain and transport. They are much cheaper. Fossil fuels includes coal, oil, natural gas, petroleum together makes 80% of global energy source in all over the world.

You might be interested in
22. A plant geneticist is investigating the inheritance of genes for bitter taste (Su) and explosive rind (e) in watermelon (Cit
mylen [45]

Answer:

See the answer below

Explanation:

Using the formula for calculating Chi square (X^2):

X^2  =  \frac{(O - E)^2}{E} where O = observed frequency and E = expected frequency.

The observed frequencies for the four phenotypes are 88, 62, 62, and 81 respectively.

For the expected frequency, the phenotypes are supposed to assort in 9:3:3:1 according to Mendel ratio.

Hence, expected frequencies are calculated as:

phenotype (1) = 9/16 x 293 = 164.81

phenotype (2) = 3/16 x 293 = 54.94

phenotype (3) = 3/16 x 293 = 54.94

phenotype (4) = 1/16 x 293 = 18.31

The X^2 is calculated thus:

Phenotype            O               E                             X^2

  1                          88            164.81            \frac{(88 - 164.81)^2}{164.81} = 35.80

  2                          62             54.94            \frac{(62 - 54.94)^2}{54.94} = 0.91

  3                           62             54.94              \frac{(62 - 54.94)^2}{54.94} = 0.91

  4                            81              18.31               \frac{(81 - 18.31)^2}{18.31} = 214.64

Total X^2 = 35.80 + 0.91 + 0.91 + 214.64 = 252.26

To the nearest tenth = 252

Degree of freedom = n - 1 = 4- 1 = 3

X^2 tabulated  = 7.815

<em>The calculated </em>X^2<em> exceeds the critical value, hence, the null hypothesis is rejected. The two genes did not assort independently.        </em>

4 0
3 years ago
What is the function of the human immune system
pshichka [43]
The immune system<span> is made up of a network of cells, tissues, and organs that work together to protect the body. One of the important cells involved are white blood cells, also called leukocytes, which come in two basic types that combine to seek out and destroy disease-causing organisms or substances.</span>
6 0
3 years ago
Read 2 more answers
During the winter, many creatures are able to drastically decrease their body temperatures and energy use and enter a reduced st
olchik [2.2K]
Do you go to Connections?

5 0
3 years ago
Read 2 more answers
A substance has a volume of 20 mL and a density of 2.5 g/mL. What is its mass? 0.125 g
KATRIN_1 [288]
The answer would be D) 50 g
4 0
3 years ago
What is the line of defence involved in phagocytosis​
makkiz [27]

Answer:

The second line of defence is nonspecific resistance, which kills intruders in a broad manner without focusing on specific individuals: phagocytic cells ingest and kill any germs that enter body tissues.

Explanation:

3 0
3 years ago
Other questions:
  • Which type of stress causes deformation that leads to earthquakes at converging plate boundaries
    8·1 answer
  • What enables blood to flow through the body
    10·1 answer
  • In mice, the Sry gene is located on the Y chromosome very close to one of the pseudoautosomal regions that pairs with the X chro
    10·1 answer
  • Which of these BEST describes an interglacial period?
    6·1 answer
  • You are trying to get a pulse oximeter reading on an 18-month-old child with difficulty breathing. Every time you place the sens
    6·1 answer
  • Which plate borders the Philippine plate?
    8·2 answers
  • What is the main advantage of the amniotic egg?
    10·1 answer
  • Archaeologists discovered cave paintings. These paintings are evidence of
    9·1 answer
  • 11 and 12 please I need help
    8·2 answers
  • HELPPPP please - biology
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!