Answer:
a
Explanation:
This is owing to some nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a dying star, such as a supernova
Answer:<u><em>When water freezes, it contracts, decreasing the water level in a lake. Water in a lake freezes from the bottom up, killing most aquatic organisms. When water in a lake freezes, it floats, providing insulation for organisms below.</em></u>
Explanation:
The organs for digestion, excretion, and reporduction arelocated in the
Abdominal cavity
The portion of Earth’s history during which tectonic forces acted on Earth’s surface.
