g temperatures are not expected to rise uniformly across the globe. a) Why is there more warming at high latitudes than the tropics

What is a small water source like a stream or brook?

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction

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?