Nebula- a cloud of gas and dust in outer space Protostar- a contracting mass of gas which represents the early stage of formation in a star White Dwarf- a stellar remnant composed mostly of electron-degenerate matter Supernova- transient astromnical event that occurs during th last stellar evolutionary stages of a massive star's life Neutron Stars- a type of compact star Pulsar- a highly magnetized rotating neutron star Black Hole- a region of space-time exhibiting so much gravitational effects that nothing can escape from inside it Spiral Galaxy- flat, rotating disc containing stars, gas, and dust Barred-spiral Galaxy- central bar-shaped structure composed of stars Irregular Galaxy- a galaxy with no distinct, or regular shape Quasar- a massive and extremely remote celestial object, emitting large amounts of energy The Big Bang Theory- a cosmological model that explains the early development of the universe Dark Matter- a hypothetical substance that is believed by most astronomers Dark Energy- unknown form of energy which is hypothesized to permate all of space
What impact does a decrease in pH have on urchins?
Decrease in pH simply means high degree of acidity which affects every living organism. The impact of high acidity affects there food intake, development of their young ones (juvenile)
