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What is the difference between the simple past (preterite) and the imperfect tense?

Spanish, unlike English, has two different past tenses, the simple past, or preterite, and the imperfect. The two have different meanings and are conjugated differently. A verb in the simple past means that ...
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Answered by Sebastian B. • Spanish tutor
29360 Views

How do I improve my essay writing skills?

We'll use a variety of exercises to improve your essay techniques. As well as looking at examples of well written essays, we'll look at your own work to see if you can spot your own areas of weakness to work...
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Answered by Isabelle W. • English tutor
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Explain why the Composition of the Plagioclase Feldspar may vary within an Intrusion.

Ca plagioclase forms early meaning that it settles down through the magma body and forms in the lower part of the intrusion and solidifies. Na rich plagioclase forms later so is only present in the middle an...
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Answered by Arthur G. • Geology tutor
4513 Views

In terms of Electrostatic Forces, Suggest why the ‘Electron Affinity’ of Fluorine has a Negative value.

Electron affinity is the energy released when 1 mole of gaseous atoms each acquire an electron to form 1 mole of gaseous 1- ions. Fluorine has a negative value as energy is released when the electron is gain...
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Answered by Arthur G. • Chemistry tutor
30151 Views

Describe the Difference Between ‘Faults’ and ‘Joints’ in Rocks.

Whereas faults have relative movement, joints have no movement. This means that although faults show displacement (such as displaced bedding), joints show no displacement.
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Answered by Arthur G. • Geology tutor
17025 Views