radioactivity

What causes radioactivity?

Radioactivity is the decay of particles by emitting radiation. The elements and compounds have some degree of stability properties. The more stable the atom, less the radioactivity. Every particle is… Read more »

Wall Street

What causes a recession?

Recession is a stage in the economy when businesses stop growing and the GDP declines for at least two quarters consecutively.House prices fall and unemployment rises in this period. Recession… Read more »

yawns2

What causes yawns?

Yawning is reflex action in which large amount of air is inhaled and then exhaled. Some of the causes considered behind yawning are fatigue, overwork, sleepiness, stress or boredom. There… Read more »