... are, usually called (31 ) renewable, resources because there is an unlimited (32 ) supply, of them. However, this definition may change if people are not careful with the (33 ) consuming, of these ... ______ of radioactive waste. 36 . a. warning b. fight c. threat d. demand 37 . a. more b. far c. very d. every 38 . a. accumulates b. disperses c. discharges d. releases 39 . a. raise b. change c. drop ... that (34 ) reachs the earth depends on the atmosphere. If the atmosphere is polluted, the solar energy reaching the earth may be (35 ) dangerous. If life is about to continue, the air must (36 ) contain...