A) all the answers
B) Gravity
C) electromagnetism
D) Nuclear fusion
E) Nuclear bonding

A) by observing objects and light around black holes
B) by running experiments on the Sun
C) All of these answers
D) by viewing black holes with powerful telescopes

A) when asteroids hit stars
B) when comes strike planets
C) when nuclear bombs explode
D) when giant stars explode

A) In the center of a planet
B) at the center of galaxies
C) at the center of the solar system
D) Inside gas giant planets

A) False
B) True

A) singularity
B) Event horizon
C) Supernova border
D) pulsar

A) Supernova
B) singularity
C) Pulsar
D) Iris

A) singularity
B) pulsar
C) supernova
D) iris

A) True
B) False

A) it's small size and large mass
B) It spins at a rate faster than light
C) Nuclear reactions at its core
D) It's large size and small mass