Which of the following is not one of the four major topographic features of the ocean basin floor? a. deep-ocean trench b. abyssal plain c. submarine canyon d. seamount

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.