Learn Farsi: دانشمندان به این عامل استناد می‌کنند، زیرا پیامدهای آن خطرناک است. - The scientists cite this factor, because its consequences are dangerous.

Zirâ is a formal causal conjunction meaning 'because' or 'for'. While you will hear chon or barâ-ye inke frequently in everyday speech, zirâ is used mostly in written Farsi, news, and formal contexts, which fits the academic tone of this sentence.

Why is the verb after zirâ in the regular indicative form (ast) instead of the subjunctive?

Conjunctions like zirâ that give a direct reason or state a fact introduce an independent clause. Because it states a reality (the consequences are dangerous), the verb remains in the normal indicative mood rather than taking a subjunctive form.

Why is the preposition be used before in âmel (this factor)?

The compound verb estenâd kardan (to cite or to reference) requires the preposition be (to) to introduce the thing being cited. So in Farsi, you literally 'make a citation to a factor'.

How is the plural word dâneshmandân (scientists) formed?

It comes from dânesh (knowledge) plus the suffix -mand (possessing), making dâneshmand (scientist). The -ân at the end is the formal plural suffix used for living beings.

Could you say instead of ?