What process or processes are shown by letter B?

Assessment includes a. interviews, recorded conversations, videos, frequency counts, and time samples. b. formal standardized tests and developmental screening tools. c. various types of documented observations, documentation of child work, checklists, rating scales, and standardized tests. d. anecdotal notes, narratives or daily records, daily health checks, and teacher observation checklists.

Explain how earth is like a giant bar magnet. how is our magnetic field made?

Scientists observed a rock stratum with fossil. if mollusks evolved before arthropod, where will their fossils be found.