What is Average rainfall in the desert?

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

The combining of light nuclei is called blank. blank as in not actually blank. you know what im tryin to say.