How long ago did oceans begin to form in Mya?

How long ago did oceans begin to form in Mya? Over several millions of years of continuous rain, oceans form. By about 3,900 million years ago (mya), Earth’s environment has been transformed from a highly unstable state into a more hospitable place. How long ago did oceans begin to form 12.5 MYA 137 MYA 285 […]

What is a frame in statistics?

What is a frame in statistics? A frame is the working definition of a population under study. It identifies all the known units in a population from which a census can be conducted or a random sample can be drawn, providing the structure for statistical description and analysis about the population [2,4,5]. What is a […]

What is the 3 step problem solving approach?

What is the 3 step problem solving approach? The first two steps are for defining and measuring the problem. The third step is the analysis. And the fourth and fifth steps are improve and control, and address solutions. What are the approaches in solving problems? Six step guide to help you solve problems Step 1: […]

What is the energy conversion for a car?

What is the energy conversion for a car? When gasoline burns in a car engine, some of the chemical energy in the gasoline is converted into heat. The heat is converted into mechanical energy. The mechanical energy moves the car. Burning fuel in an electric power plant produces heat. When a car drives down a […]

Who proposed the 15th Amendment?

Who proposed the 15th Amendment? Ulysses S. Grant Who voted for and against the 15th Amendment? The vote in the House was 144 to 44, with 35 not voting. The House vote was almost entirely along party lines, with no Democrats supporting the bill and only 3 Republicans voting against it, some because they thought […]

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