Something is alive if it can reproduce, respond to changes in its environment, can convert some form of energy into energy to sustain its self, and produces waste.
No. The sun is not a living thing.
No. A salt crystal is not considered a living thing.
A nuclear reaction is not considered a living thing.
Living thing. Since a seed is in a living thing, it is living. Most likely, that is your answer.
It is non-living!
yes
A tree, which doesn't move away, is considered a living thing because it has cells. So, all living things have cells wether they move or not, or else they would NOT be living.
Yes, a plant is considered a living thing because it meets the criteria for life, such as growth, reproduction, and response to stimuli.
Sperm is considered a living thing because it is a cell that is capable of carrying out functions necessary for life, such as movement and reproduction.
A dinosaur is considered a non-living thing. Dinosaurs were a group of reptiles that existed millions of years ago and are now considered extinct.
air is a non-living thing because it is not an organism and it has no cells.
Because it has cells. Anything with cells is considered living.