All telescopes work by collecting and focusing
images that are far away and very small
different wavelengths of light
different forms of electromagnetic radiation
radio waves that might be converted into light

Alaina wants to decide whether her current cell phone plan is better than a package that another company offers. to compare the two plans, she plotted two lines on a graph, where y represented the total cost of one month’s service and x represented the megabytes of data that she used in a month. which part of the graph will represent the cost per megabyte of data used in each plan?

One of the main reasons the united states occupied japan after world war ii was that

Why isn't the balkan region good for farming? it has dry summers. it is far from the sea. its soil is not fertile. its terrain is mountainous. its winters are mild.