Answer:
Luminosity is an intrinsic(natural) measurable property of a star independent of distance. The concept of magnitude, on the other hand, incorporates distance. The apparent magnitude is a measure of the diminishing(decrease) flux of light as a result of distance according to the inverse-square law.
Water will violently react to the alkali. All the alkali metals react directly with oxygen; lithium and sodium form monoxides, Li2O and Na2O, and the heavier alkali metals form superoxides, MO2.
Social behavior refers to the interaction exhibited among two or more organisms of the same specie. Benefits of social behaviour include the following:
1. It offers protection. Many animals live together in groups in order to secure protection for themselves.
2. It heightened the success of obtain food. Previous studies have shown that many animals are successful in searching for food if they search in groups.
3. Some animals travel in groups in order to make travel easier and also to protect themselves from predators.
Well, the seedless plants reproduce and when they do produce, they provide good for the consumers in the environment and omnivores . Also when reducing, the release carbon dioxide, and when the animals die the body’s leave nutrients , which means that it will dig into the soil and will be used by other organisms.