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Explain why the use of petrol and diesel cars may be a source of market failure.

Use of petrol and diesel cars causes over-pollution to the environment, which is an externality in the economy. The overconsumption of petrol and diesel cars results in more pollution and emissions than is s...
SM
Answered by Seb M. • Economics tutor
15147 Views

How do you find a missing side length in a right-angled triangle?

Use Pythagoras' theorem. a 2 + b 2 = c 2 . The longest side of the triangle is the hypotenuse, and it is the side opposite the right angle. We use the length of this side as 'c' if we have it. 'a' and 'b' ar...
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Answered by James D. • Maths tutor
12929 Views

What tense is used in the following : “Elles étaient allées”?

Le plus-que-parfait, which corresponds to the “past perfect” in english.Used for actions or things that have occurred before a specific point in the past. It is actually pretty uncommon, and only really used...
HD
Answered by Hannah D. • French tutor
2478 Views

What is photosynthesis? Where does it occur? What are the reactants and products of the process?

Photosynthesis is the process that allows plant cells to convert light energy (from the sun rays) into chemical energy. This energy is biologically useable to the plant, and essential to it's survival. The r...
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Answered by Hannah D. • Biology tutor
3803 Views

When do you use the subjunctive mood?

There are three things that lead us to use the subjunctive mood, instead of the normal indicative. These are what we call triggers. 1) There must be a change of person in the sentence.2) There must be a rela...
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Answered by Kane T. • Spanish tutor
1939 Views