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
Bogdan [553]
3 years ago
12

There are different forms of energy and one form of energy can be converted into another. When we light a wax candle, the proces

s is highly exothermic and on burning, the chemical energy of the wax gets converted into heat and light. A good source of energy is to be selected for the choice of work to be done. In ancient times, wood was the most common source of heat energy. We, in our daily lives, use various energy sources for doing the work. Nowadays we use diesel and electricity to run trains. We also use fossil fuels in vehicles which has some serious disadvantages, mainly air pollution. The recent example of air pollution was ‘Smog’ in the National Capital Region of Delhi. This pollution was a result of burning ‘Parali’ in northern states of the country, which affected the eyes and also caused serious respiratory problems.
4(a) State the energy conversion that takes place when we light a wax candle. 1
4(b) List two criteria of selecting a source of energy for a specific work. 1
4(c) Write the names of two fossil fuels. 1
4(d) why are we looking at alternate sources of energy? 1
Biology
1 answer:
Butoxors [25]3 years ago
7 0

Answer:

shiii tbh thats hard

Explanation:

You might be interested in
True or False: An organisms that reproduce through binary fission produce more diversity (variety ) in their offspring.
dolphi86 [110]
No , an organism produced by meiosis causes more diversity due to crossing over
4 0
3 years ago
What are the differences between aggregate fruit and multiple fruit ​
Dmitry_Shevchenko [17]

Answer:

Aggregate fruit is a fruit that develops from several ovaries forming one flower. An example of an aggregate fruit is a raspberry. Multiple fruit is fruit that develops from a cluster of flowers, and each flower produces a fruit, which turns into a mass of a singular fruit. An example of multiple fruit is a pineapple. Each "cube" of a pineapple is a separate fruit formed from a single flower, yet the pineapple as a whole is one mass of pineapple.

4 0
3 years ago
The national environmental policy act requires the federal government to
SVEN [57.7K]

Answer:

use all practicable means to create and maintain conditions under which man and nature can exist in productive harmony

Explanation:

4 0
3 years ago
Which of the following are examples of science? Mark all that apply.
Reptile [31]
I think the correct answers are options C and D. Examples of science are a farmer consulting a weather almanac to decide the best time to plant a crop and a<span> drug manufacturer testing a drug to determine its safety. These things require the knowledge on science and its related subjects.</span>
4 0
3 years ago
Read 2 more answers
Which property of igneous rocks does the rate of cooling influence the most
Paha777 [63]
The rate mainly effects the size of the crystals in the rock forming
5 0
3 years ago
Other questions:
  • Which is the most accurate statement about ferns?
    14·1 answer
  • Is energy in fossil fuels is derived from the energy stored in plants and animal matter?
    5·1 answer
  • When fertilizer runs off into streams and lakes, what increases in the water? Select all that apply.
    12·2 answers
  • Chemical reactions will occur independently of the reactants temperature. True/False
    7·2 answers
  • Which of the following best explains why what we know about cells is called a theory and not a law?
    9·2 answers
  • Which of the following best describes passive transport?
    9·1 answer
  • Electricity produced by waterpower is ____.
    14·2 answers
  • How can a hunter help wildlife conservation efforts? A, By making sure to always obey the rules of firearm safety By making sure
    11·2 answers
  • In which generation gametophyte or sporophyte do the following belong
    9·1 answer
  • Most plants get nitrogen from?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!