Alarge planet sized object collided with earth 4.5 billion years ago and formed what

How can the attitudes or culture of business affect the environment?

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

Which of the following is not a reason why shenzhen, china, is considered an emerging global city