In biomagnification where can the concentration of harmful chemicals be higher?

A. higher trophic levels में / In higher trophic levels

Step 1: Identify the concept: this is pollution and food chain. Step 2: Some harmful chemicals can become more concentrated as they move up a food chain. Step 3: Remember biomagnification means increase at higher levels.

Step 1: concept पहचानें: यह pollution और food chain है। Step 2: कुछ harmful chemicals food chain में ऊपर जाते हुए अधिक concentrate हो सकते हैं। Step 3: Biomagnification means increase at higher levels याद रखें।