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Mechanical weathering.Very high temperatures during the day determine the expansion of rocks. Contraction occurs during the night when temperatures are very low, sometimes bellow freezing point. Therefore...

The oceanic crust is generally younger than the continental crust as it is less than 200 million years old and can also be renewed or destroyed at plate boundaries. For example, the oceanic crust which fo...

During the 13th century most hospitals were run by the Church therefore they were very religious. Hospitals were typically staffed by monks and nuns, most illnesses were treated by worshipping God. Due t...

The imperfect past tense is formed with the endings:AR verbs Yo - abatú - abasel/ella - aba nosotros - abamos vosotros - abais ellos/ellas - aban ER and IR verbs yo - ía tú - ías el/ella - ía nosotros - í...

The simplest way of describing a gerund is to call it a 'verbal noun', that is, a noun formed from a verb. Another way might be to describe it as the 'noun of an action'. For example, if we have the verb ...