During nuclear fusion, energy is generated as A
the mass gets larger.
B
the nucleus of a large atom is broken into smaller atoms.
С
the element becomes magnetic.
D
some of the mass is converted into energy.

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst

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.