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Numerous experimental investigations have been conducted to explain the diversity and unity of life. Specifically, these models have aimed to provide evidence that the conditions of early Earth provided a...

300 x (7/20) = 300/20 x 7 = 15 x 7 = 105 = number of men on the plane.

300 x 0.3 = 90 (Or 300/10 x 3) = number of women on the plane.

105 + 90 = number of adults on the plane = 195.

3...

To be able to understand direct pronouns you need to know what a direct object is: 

A direct object is the direct recipient of the action of the verb - for example: Legge il libro - the book is the...

Fold mountains form at continental convergant plate bounderies. Here the two continental plates are being pushed towards one another by tectonic forces, powered by convection currents in the mantle. The p...

The main difference between the active and passive is that in an active sentence, the agent (the person who does the action) is the subject of the verb. For example: Juan escribe un libro and los chicos h...