This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.

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Q1: দুটি রাসায়নিক সার ও দুটি রাসায়নিক কীটনাশক এর নাম লেখ। (Write the names of two chemical fertilizers and two chemical pesticides.)
Q2: মানুষের দেহে ম্যালেরিয়া রোগের জীবাণু কোথা থেকে প্রবেশ করে? ক্ষতি হয়? (From where do the malaria germs enter the human body? What is the damage?)
Q3: খাবার ও জামাকাপড়-এর জন্য কোন কোন প্রাণীর- মানুষের? (Which animals are used by humans for food and clothing?)
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Welcome back farzana — been a while! Let's pick up where you left off.
This biology question covers important biological concepts and processes. The step-by-step explanation below helps you understand the underlying mechanisms and reasoning.