The degree of vertex D is if it is an indegree or outdegree, it is 1 degree in vertex D.
Answer:
Explanation:
Americans are more racially and ethnically diverse than in the past, and the U.S. is projected to be even more diverse in the coming decades.
Women’s role in the labor force and leadership positions has grown dramatically.
The world is aging. The demographic future for the U.S. and the world looks very different than the recent past. Growth from 1950 to 2010 was rapid — the global population nearly tripled, and the U.S. population doubled.
Christians are declining as a share of the U.S. population, and the number of U.S. adults who do not identify with any organized religion has grown.
The share of Americans who live in middle class households is shrinking
The American family is changing. After decades of declining marriage rates, the share of American adults who have never been married is at an historic high.
Answer:
b. cause gases and particulate matter to remain trapped near the ground.
Explanation:
Temperature inversion simply means warm air been trapped in the atmosphere within a colder layers. it causes gases ,dust, dew and particulate matter to remain trapped near the ground thereby reducing visibility.
Answer:
Wastewater from fracking operations is injected into porous rock formations, which can induce seismic activity.
Explanation:
- The environmental concerns of the fracking can be linked to the increase of the potential for the oil spills that harm the coil and the surrounding vegetation and can cause the earthquakes due to the high pressure that is used to extract the oil and the gas from the rocks and storage of the excessive wastewater on site.
