The average emission rates in the United States from burning coal are 13
Ib/MWh (pounds per megawatt hour) of SO2 and 6 lb/MWh of NOx. (A pound
is a unit of mass, and a megawatt hour is a unit of energy.) Imagine that a
scientist developed a new emission control device that can cut each of these
emissions to 35% of the current output. If the device were installed, what
would the average emission rates change to?

What is the following best defines climate?

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.