20 point my jaw is locked please don't report jus need help

Give an example of a situation in which an individual's pursuit of economic self-interest may not benefit but instead harm the rest of society

This is science by the way which of the following is an example of an environmental pressure a. the air pressure in the atmosphere b. a lake that is gradually running out of water c. a fight between two members of the same species d. breeding between two members of the same species

Which two organisms in the food web would most likely be affected by a decrease in producers, or the plants, at the bottom base of the food web?