Question 19 When a uranium atoms splits in two, a few stray neutrons are produced. If these neutrons can induce the splitting of more uranium atoms, a chain reaction results. In order to facilitate this, a nuclear reactor contains Answer neutrons down. __ii__ is/are used to determine how many of these stray neutrons can continue the chain reaction. saved Marked out The statements above are completed correctly by the information in row e of 1.0 Select one: i 20 decel llandri question a. adecelerator; A callandria b. amoderator; A callandria c. adecelerator; Control rods * d. amoderator; Control rods Clear my choice Question 20 The energy transformations that take place within a nuclear reactor are Answer saved Select one: Marked out a. nuclear to thermal to electrical 210 b. thermal to nuclear to kinetic to electrical fFlag * c. nuclear to thermal to kinetic to electrical question d. thermal to nuclear to thermal to kinetic to electrical Clear my choice Question 21 In a CANDU nuclear reactor, __i__in a process known as __ii__. Answer saved The statement above is completed correctly by the information in row . Marked out of 1.0 Select one: Flag a. small nuclei are joined together; nuclear fission question * b. large nuclei are split apart; nuclear fission c. small nuclei are joined together; nuclear fusion d. large nuclei are split apart; nuclear fusion Clear my choice Question 22 Fusion reactors aren't yet developed. The main reason why is Answer saved Select one: Marked out * a. thereisn't a steady source of fuel. of 1.0 b. the technology is too difficult. v Flag c. thereis nointerest in these. question d. there isn't a good location for one. Clear my choice Question 23 Most of the geothermal heat we use comes from __i_. The best places on earth to take advantage of geothermal energy are __ii__ Answer saved The statements above are completed correctly by the information in row . Marked out of 1.0 Select one: o a. radioactive decay; volcanic areas question b. radioactive decay; mountainous areas c. natural cooling of the Earth; volcanic areas d. natural cooling of the Earth; mountainous areas Clear my choice Question 24 A good location for a power station is near a population centre because __i__ and near a source of fuel because __. Answer saved The statement above is completed correctly by the information in row . Marked out of 1.0 Select one: o a. communiting to work is easier; transportation costs are lower question * b. the customers are nearby; transportation costs are lower c. commuting to work is easier; it's easier to turn raw material into fuel d. the customers are nearby; it's easier to turn raw material into fuel