Answer: The correct requirement for a black hole to form is:
C. The star must be 10 to 28 times larger than Earth’s sun, and a supernova explosion must have occurred.
Explanation: The least star that is larger than the sun is 10 times larger and a supernova explosion would have happen before a black hole to form.
respuesta:
Como el ángulo 1 mide 60°, entonces, el ángulo 2 mide 120°. El ángulo 3 mide 60°, ya que, los ángulos 1 y 3 son opuestos por el vértice, por lo tanto, tienen la misma medida.
Lack of O2, hunger, hypothermia... Everything can be a problem when in Everest
The sea that forms Polands northern boarder is called Baltic
I would say that in very fast moving water such as in a river, the cobble size could be transported because cobbles are 64-256mm so are quite big and in a quiescent stream won't move much but in a freshet say in a steep mountain stream they can be rolled along such as I observed in the local streams at a mining town during the Hurricane Fifi in Honduras in 1974.
