Do sedimentary rocks contain particles from other rocks?

Match the graph type to its description. 1. uses symbols to describe information pie 2. compares different quantities at the same point in time line 3. compares increases and decreases in a quantity over a period of time bar 4. shows the relationship of parts to each other and to the whole pictograph

Simple astronomical telescope the objective lens has a focal length of 75 cm and that of a piece of 5cm of the lenses are 18 cm apart when will be final image of a distant object before

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?