First answer Part A then Part B (Part A) What do scientists use to listen for signs of life that some people believe might exist on distant planets?

A. Global Positioning Systems
B. sextants
C. radio telescopes
D. the Hubble Space Telescope

(Part B) When you jump, you always come back down to Earth. What causes that?

A. gravity
B. tilt
C. orbit
D. rotation

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.

"it is true that we are called a democracy, for the administration is in the hands of the many and not the few." pericles athenian statesman, 5th century b. c.e. what kind of democracy is pericles referring to? - pericles athenian statesman, 5th century b. c.e. a. representative democracy b. parliamentary democracy c. direct democracy d. presidential democracy

What caused the settlement of more african americans in the mississippi alluvial plain region then in the ozark mountains region?