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
qaws [65]
3 years ago
15

Solar cells harness the sun's energy and convert it into electricity. However, the cost of this clean energy is much higher than

the cost of energy produced using fossil fuels. What development might reduce the prices of solar energy?
A) The use of more wind energy.

B) The discovery of new coal deposits.

C) The expansion of off-shore drilling.

D) The invention of cheaper solar panels.
Biology
2 answers:
damaskus [11]3 years ago
7 0
D is the correct answer.
Dafna11 [192]3 years ago
4 0

Answer:<u> Option D </u>

Solar panels contain a very expensive element, i.e. silicon. This element is able to convert the solar energy into electric energy. The cost of the solar panel gets expensive because of this rare element. It is found in limited areas of the world. That’s why option D is correct. Coal is not used in solar panel, so option B is incorrect. Neither is wind energy, so option A is also incorrect. Water is also not used for exploiting solar energy, which makes option C a wrong answer.

You might be interested in
(a) What cell structures best reveal evolutionary unity?
xeze [42]

Answer:

The correct answer will be-

1. Evolutionary unity-  DNA

2. specialized cellular modifications- plant cells have chloroplasts and large central vacuole.

Explanation:

<u>Case I </u>

Evolutionary unity is a concept which explains that all the organisms possess some common structure or universal structure or molecules.

The best characterized evolutionary molecule is DNA molecule which took the role of genetic material in past and is passed on to the daughter cells and still is made up of the same components which are a five-carbon sugar, four types of nitrogenous bases and a phosphate group. This DNA molecule is present in almost every organism except for a few viruses.

<u>Case II </u>

The specialization of the cellular components depends on the function a cell has to perform which became established in the population. The plant cells depended on the sunlight to prepare food for themselves which was done by the chloroplast organelle which is absent in the animal kingdom.

7 0
3 years ago
How does the water get from the air to the ground
loris [4]
It forms in the clouds which causes rain and then falls to the ground thus causing a wet ground
7 0
3 years ago
Read 2 more answers
Which of the following statements about manual Sanger sequencing is true? View Available Hint(s) Which of the following statemen
Fed [463]

Answer:

One sequencing reaction is performed

Explanation:

The manual Sanger sequencing technique is based on the termination of DNA synthesis by the addition of a ddNTP, which impairs the full elongation of the molecule. Originally, you would perform four parallel reaction, one for each type of ddNTP (A, G, T, C). So in each reaction you would get sequences of different lengths, all finished with the ddNTP you added in that tube.

By running an electrophoresis for nucleotides, using a gel with enough resolution to separate the sequences by on base pair (bp). If you run each of the reaction mixture in a different rail, you should get fragments of the lengths corresponding to all the positions the nucleotide you added as a ddNTP occupy in the sequence.

Also, as the fragments are separated based on their molecular weight, so smaller ones migrate further in the gel. That means the gel should be read from bottom to top (note that the smaller fragments were terminated earlier than the larger ones).

For example, if in the rail of ddATP, you get a fragment of four bp, that means the fourth nucleotide of the sequence it's an A.

Per each reaction, only one sequence can be sequenced, otherwise it would be impossible to know which fragments correspond to the different sequences.

This method doesn't need any kind of dye to be used on the different ddNTPs as long as they are added in separate reactions.  

4 0
3 years ago
Meiosis and mitosis have different stages that share some similarities and differences. What
Ira Lisetskai [31]

Answer:

During meiosis Prophase I, crossing over occurs which increases genetic diversity.

Explanation:

5 0
3 years ago
Replicate the following DNA sequence: CCC
hoa [83]

Answer:

GGG

Explanation:

use AT GC

opposite of C is G and since there's 3 c's you replicate and get 3 g's

6 0
2 years ago
Other questions:
  • What are the five groups of vertebrae
    10·1 answer
  • The corpus callosum connects the two cerebral hemispheres. <br> a. True <br> b. False
    8·2 answers
  • When considering the evolutionary tree of life and the three domains of life, which statement best describes what likely happene
    13·1 answer
  • What is a solenoid i need helpppppp!!!!!!!!
    8·2 answers
  • Question: Which substance is a product of cellular respiration ?
    12·1 answer
  • What is the purpose of using concrete boxes that form small houses on the bottom of the ocean? A)keeping birds from becoming tan
    14·1 answer
  • Why are maritime air masses more often associated with weather disturbances?
    6·2 answers
  • Which statement is evidence that the components of the genetic code are common to all organisms?
    12·1 answer
  • What change caused multicellular life to form?
    7·2 answers
  • A(n) ________ is a hard outside covering that is used for protection and prevents the inner body area from drying out.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!