Label each of the following artifacts as a primary source or a secondary source: a modern painting of Vasco de Gama's 1498 arrival in India
primary source
a map used by Magellan's crew
primary source
Antonio Pigafetta's journal
secondary source

What do sensory neurons do? for science

Who gave the famous "i have a dream" speech at the march on washington?

According to subpart d, research with children may be eligible for exemption when: the children will be asked to complete a surveythe research involves the use of educational teststhe children will be interviewed by the researcher.the research with children will involve participant observation with researcher interaction.