_____ is the field of study focused on searches for life and possible habitats for such life on other worlds
A) Anthropology
B) Sociology
C) Ecology
D) Astrobiology
D
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The Sun has a continuous visual spectrum with dark absorption lines. The continuous spectrum is produced by the ____________ layer while the dark absorption lines are produced by ____________layers
a. inner chromosphere; outer photosphere b. inner photosphere; outer chromosphere c. inner chromosphere; outer corona d. inner corona, outer chromosphere
Matter Waves: What is the wavelength of the matter wave associated with an electron moving with a speed of 2.5 × 107 m/s? (melectron = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s)
A. 29 pm B. 35 pm C. 47 pm D. 53 pm
The use of grids for responsive web design layout ensures pages will adapt to different screen sizes.
Answer the following statement true (T) or false (F)
Because of their mass, the threshold temperature for electrons is:
A) higher than that of neutrons. B) lower than that of protons. C) higher than that of protons. D) lower than that of hydrogen. E) higher than that of hydrogen.