No more 7. What does the dark blue solution of copper oxide reacting with sulphuric acid contains? List the 3 substances.​

Which of the following is true about fossils? a. the relative age of fossils cannot be determined from their position in sedimentary layers. b. fossils found in lower layers of sedimentary rock are as old as fossils found in upper layers of sedimentary rock. c. fossils found in upper layers of sedimentary rock are older than fossils found in lower layers of sedimentary rock. d. fossils found in lower layers of sedimentary rock are older than fossils found in upper layers of sedimentary rock.

Plants can have a positive and negative effect on the rate of weathering

Lines of longitude are like stripes from the top of the globe down to the bottom virtually slicing the earth like an orange