2 results for “microscope”

1. Planet Earth

   Rocks, Minerals and Fossils

   microscopic plankton shells that drifted to a sea floor 90 million years ago. Sedimentary rocks form

   Article · 4 min read

   

2. Planet Earth

   The Oceans

   Microscopic floating plants, the phytoplankton, produce about half of all the oxygen in the atmosphere and feed

   Article · 4 min read