Ascientist plans to find out the cause of decrease in bird population and a location. he interviews 50 people who work in the local oil mine.

human-caused climate hope this

b. to discover aspects of the natural world.

hopefully i .

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

i think the answer is c hope this