As Curtiss thought, our Milky Way is now known to be quite similar to the nearby Andromeda Galaxy, M-31
Indicate whether the statement is true or false
TRUE
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What is the main reason Hadley circulation in a planet's atmosphere breaks up into zonal winds?
a. convection driven by solar heating b. heating from the solar wind c. hurricanes developing along the planet's equator d. a planet's rapid rotation e. heating from the greenhouse effect
Which of the following represents the maximum value of the magnetic field at a distance of 2.5 m from a 100 W light bulb?
A) 0.10 ?T B) 0.40 ?T C) 0.50 ?T D) 0.60 ?T E) 0.80 ?T
What are the common properties shared by most active galaxies and quasars? How do these properties lead to an understanding of the central engine?
What will be an ideal response?
The stratosphere and the troposphere account for ______________ of the mass of the atmosphere
a. 80% b. 90% c. 99.9% d. 78.1%