I (learn) English for seven years now.

The smokey mountains have over 2,100 miles of rushing mountain streams and rivers that flow through the park. in each mile lives a diverse community of native fish, amphibians, insects, and larvae, some of which are found only in the southern appalachians. park managers and scientific researchers test many factors such as fish populations, the watersheds and water tests to determine a) too many lizards are present b) the water quality of the stream c) rainwater is running into local streams d) if visitors to the park are overstaying their welcome

If the null hypothesis is false and the researchers do not reject it a type 2 error has been made. true or false

Why did the following change occur? the snow that covered the ground all winter began to melt tempatures rose and flowers started to bloom