Answer:
B
Explanation:
The Quaternary sector is the part of the economy that is also sometimes described as the knowledge economy because it includes education activity.
Quaternary sector activity is measures, for example, by the presence and influence of higher education centers, foreign exchange students, research and investigation labs, think tanks, and innovation and entrepreneurship present in an economy.
Advanced technology is also an important aspect of the Quaternary sector that has only grown more important with time.
<span>The phosphate enters the ecosystem and becomes tied up in the biogeochemical system where it is recycled. The rapid growth of aquatic vegetation and/or increase in the algal population can cause the death and decay of vegetation and aquatic life because of the decrease in dissolved oxygen levels.</span>
It doesn't, it gets colder as you go higher.
Because of Earth's axial tilt (obliquity), our planet orbits the Sun on a slant which means different areas of Earth point toward or away from the Sun at different times of the year. Around the June solstice, the North Pole is tilted toward the Sun and the Northern Hemisphere gets more of the Sun's direct rays.
