Methane gas explosions can only occur when methane is present in air at concentrations greater than
50%. Indicate whether the statement is true or false.
F
You might also like to view...
Refraction occurs because radiation speed varies with
A) moisture. B) density. C) sunlight. D) temperature.
On a blank map of Southwest Asia and North Africa, draw a line around your definition of the "Middle East" and then write a paragraph defending your answer. Compare your map with those of classmates
What will be an ideal response?
A typical sample of brass is 67% (w/w) copper and 33% (w/w) zinc. How many moles of zinc are dissolved in 67 grams of copper?
A) 0.33 mol B) 0.50 mol C) 0.67 mol D) 1.0 mol
Along ________ new ocean floor is formed by upwelling flows of magma, whereas along ________ old oceanic crust is destroyed
A) oceanic trenches; archipelagos B) subduction zones; mid-ocean ridges C) archipelagos; oceanic trenches D) mid-ocean ridges; subduction zones