Explain proximity sensors please

Hey guys! this is not for school. i my dog gave birth a week ago and we are celebrating them today so i decided to give out a ton of points, a tnx and brainiest to whoever answers the following questions. 1. did you have a good day today. 2. do you like dogs (its okay if you don’t) 3. if you were an animal, what animal would you be? (i am just curious. i would be a unicorn.)

The probability of rolling a sum of 7 when rolling two dice simultaneously is 0.167. you decide to test that probability by rolling th dice 12 times. what is the probability that exactly 2 of the rolls is a sum of 7?

Which of the following would most likely be a preservationist, as opposed to a conservationist, approach to public land management? i. allowing unrestricted boat access to a lake ii. allowing atv use in all areas of public land iii. closing fragile sections of a park to tourists i only ii only iii only i and iii ii and iii