Please help me Its a test and it determines my final grade

How heavy is thanos? a) 3000 lbs b) all of it c) the price of tea in china d) heavy enough

Which of the following words describe the reality that the universe looks the same from various perspective

15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.