<span>It could be a supernova.
The Crab Nebula is the remnants of a supernova explosion which was
observed in the year 1054. The star that exploded was 6000 light years
away and it was still a spectacular sight even from that distance.So its A.Let me know if I helped.
Give me brainliest and stars.
:)
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A force is a push or a pull that acts upon an object as a results of its interaction with another object. ... These two forces are called action and reaction forces and are the subject of Newton's third law of motion
most of a atoms mass is in the nucleus of the atom:) hope this helps you
1. Testing only one variable
A controlled variable means its the one that stays the same. In a controlled experiment, it means there is only one manipulated, (changed) variable.
