Question

which type of star death causes elements to travel into space?
a pulsar
a supernova
a black hole
a planetary nebula

Explanation:

A supernova is a powerful and luminous explosion of a star. During a supernova, the star releases a vast amount of energy and expels its outer layers, including heavy - elements, into space. Pulsars are the remnants of some supernova explosions and do not directly cause elements to travel into space. Black holes are regions of space with extremely strong gravitational fields and do not expel elements into space in the context of star - death causing element ejection. Planetary nebulae are the outer layers of a red - giant star that are shed gently and do not have the explosive force of a supernova to eject elements as widely.

Answer:

B. a supernova