Question

QUES TION 46 Radon is a type of radioactive rock e gas O energy wave . QUESTION 47 An example of e-waste ls e spam, or junk e-mall O old cell phones energy wasted by leaving your cell phone plugged in. O Internet servers that run at less than full capacity QUESTION 48 Which one of the following is not one of the four Rs of green consumerism? o reduce O recycle O refuse O reuse QUESTION 49 Which of the following is a source of renewable energy? coal O natural gas O nuclear power O biomass QUESTION 50 Levels of atmospheric greenhouse gases are rising due to the destruction of the ozone layer o combustion of fossil fuels O water pollution o acid rain

Answer 1

ANSWER

Q.46. Radon is a type of radioactive gas with atomic number 86.

           it is a colourless and odourless noble gas.

Q.47. E - waste(electronic waste) include old cell phones.

Q.48. Refuse is not one of the four R's of green consumerism.

          It's four R's include Reduce,Recycle,Repurpose,Reuse.

Q.49. Biomass is one of the source of renewable energy.

          It is a type of energy from organic matter since people

          begin to burn wood to cook food.

Q.50.Combustion of fossil fuels causes rise in the level of atmospheric

         greenhouse gases.