Translate this to bengali : A new study provides the earliest evidence to date of ancient humans significantly altering
entire ecosystems with flames. The study combines archaeological evidence -- dense clusters of stone artifacts dating as far back as 92,000 years ago -- with paleoenvironmental data on the northern shores of Lake Malawi in eastern Africa to document that early humans were ecosystem engineers.

একটি নতুন সমীক্ষা প্রাচীন মানুষের তারিখের প্রাথমিক প্রমাণ সরবরাহ করে যা উল্লেখযোগ্যভাবে পরিবর্তন করে

শিখার সাথে পুরো বাস্তুতন্ত্র। গবেষণায় প্রত্নতাত্ত্বিক প্রমাণের মিল রয়েছে - প্রায় ২২,০০০ বছর পূর্বে পাথরের নিদর্শনগুলির ঘন ক্লাস্টারগুলি - পূর্ব আফ্রিকার মালাউইয়ের উত্তর উপকূলে প্যালিওয়েঞ্জেরিয়াল ডেটা সহ এটি নথিভুক্ত করতে যে প্রাথমিক মানুষ বাস্তুসংস্থান প্রকৌশলী ছিলেন।

Explanation:

is this the right language?

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)

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