This image of the volcano Sapas Mons on Venus is based on images taken by the Soviet spacecraft Venera 13 and Venera 14. Which of these events explains the presence of the volcano?

A.
Space objects collided with Venus.
B.
Flowing rivers eroded a hole through Venus’s crust.
C.
Magma from Venus’s mantle erupted as lava.
D.
Excessive heat from the Sun scorched the area.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Which of the following electromagnetic waves can create ions?

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.