Brainliest !
use the weather map to answer the question. (you can see it below)

what do the blue and red lines indicate?

a cold front is moving to the north and west before a warm front moves through.
a cold front is moving to the south and east before a warm front moves through.
a warm front is moving to the north and east before a cold front moves through.
a warm front is moving to the south and west before a cold front moves through.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.

Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *