What characteristic is favoured for survival?​

Because light travels in a straight line and casts a shadow, isaac newton hypothesized that light is

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?

Carbon 14 is a naturally occurring stable