What’s a claim ? I don’t know what to write for the claim . I need help please. It’s for biology class ( no links aloud )

Which of the following best describes the purpose of technology?

Cells destroy body cells infected by a virus or bacteria.

20 points and brainlist 1. london has suffered from terrible air pollution for at least seven centuries. why is the city so prone to its famous “london fog? ” what did london do to get rid of its air pollution? 2. why does air pollution cause problems in developing nations more than in developed ones?