Question 1: The natural environment consists ………….. all natural resources. a. in b. of c. to d. on Question 2: We could make better …………of our energy resources. a. spend b. use c. need d. limit Question 3: Solar energy is not only plentiful and ………… but also clean and safe. a. limited b. unlimited c. dangerous d. expensive Question 4: A nuclear reactor releases…………… which is dangerous to the environment. a. radiation b. heat c. energy d. carbon dioxide Question 5: ......……..is produced from the heat stored in the earth's core. a. Geothermal energy b. Nuclear energy c. Solar energy d. Water energy Question 6: Fossil fuels are limited, so people must develop and use ………… sources of energy. a. traditional b. alternative c. surprising d. safe Question 7: ................ energy sources include water and wind power. a. Friendly environmental b. Environmentally friendly c. Friendly environment d. Environmental friendly Question 8: Increased consumption will lead to faster ...... of our natural resources. a. exhaust b. exhausting c. exhaustion d. exhaustive Question 9: Solar energy can be changed ……………. electricity. a. in b. to c. into d. for Question 10: Fossil fuels will be ……………… within a relatively short time because power demand is increasing very rapidly a. unlimited b. exhausted c. alternative d. plentiful Giải giúp mình với