In Earth's climate system, positive feedback's tend to amplify changes in the system, and negative feedback's tend to encourage the system against change. Having a positive feedback gives the newest updates and brings the problems on the table, thus changes are always a must when there's proof that suggest there's big problem, but when the feedback is negative, lacking, then there's not pressure for changes, so anyone who has interest in not changing will push for that, thus encouragement of taking no changes. <span />
Answer: show what's happening to are earth
Explanation:
The correct answer is letter B. Horizontal water movements. Upwelling is a phenomenon that involves the dense's motion because of the wind. It is cooler and makes the water rich in nutrients towards the ocean surface. The warmer air is replaced and nutrient-depleted surface water are also replaced. This makes increase in plankton population and increase in nutrients at the ocean surface. The movement of the water is vertically up.
Answer:
Improvement in trensportation helped the city to get urbanized because many people could move to the city.
changes in communication helped the city to better communicate with each other, and lot of electric poll would have got built in
population growth helped made city over populated, and they had to make and apartment and more building to provide houses and many convenient place
migration to the city also makes the city over-populated
economic development could cause many changes to city, and there would be more building because of economic development
Couldn't read the last one pal, sorry.
Explanation: