آتشفشان بر پوسته‌ی زمین تاثیر می‌گذارد.

Questions & Answers about آتشفشان بر پوسته‌ی زمین تاثیر می‌گذارد.

This sentence describes a cause and effect but doesn't use the lesson's target expressions. How could we rewrite it to use dar asar-e?
You could shift the focus to the result. For example, puste-ye zamin dar asar-e âtashfeshân taghyir mikonad means: The Earth's crust changes as a result of a volcano.
Why do we use the preposition bar before the Earth's crust?
The compound verb ta'sir gozâshtan (to affect or to leave an impact) requires a preposition to show what is being affected. It typically pairs with bar (upon) in formal contexts, or ruy-e (on) in everyday speech.
What is the literal breakdown of the word for volcano, âtashfeshân?
It is a compound of âtash (fire) and feshân, which is the present stem of feshândan (to scatter or spray). So, a volcano is literally a fire-scatterer.
Is the word puste used only for the Earth's crust?
Puste generally means shell, casing, or crust. It comes from pust (skin or hide) combined with the noun-forming suffix -e. Paired with zamin (Earth), it specifically means the Earth's crust.

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