A sheet of metal and a sheet of paper are left next to each other in the sunshine. After several minutes, the metal will be warmer to the touch than the paper. The metal is a (n)and the paper is a(n)​

Ascientist wants to know how individual lions within a pride interact with each other in their own environment. to do this, the scientist sedates and tags all of the lions within a pride. then, he places several remotely-controlled video cameras near the lions' den and performs an observational field study. he collects continuous video footage over the span of one year, analyzes the video, and then forms conclusions based on his observations.