Imagine you worked for the national weather service and you noticed strong rotation in a supercell thunderstorm on radar (i. e., you saw a hook echo and a red-green velocity couplet). what would you do? select one: o a. issue a tornado watch o b. issue a tornado advisory o c. issue a severe thunderstorm watch o d. issue a convective outlook o e. issue a tornado warning

The map above shows where people live in the united states. areas that are darker blue are areas where people live close together. areas that are lighter colors are places where people live farther apart. as a geographer, if you were to study where people live and why they choose to live in these places, which of the six essential elements of geography would you be using?

Read the article about the fraser river, one of the most important rivers in canada. what is the most important species of fish in this river? why are the numbers of these fish declining?

Where did the solar system come from?