Answer:
the angular distance of a place north or south of the earth's equator, or of the equator of a celestial object, usually expressed in degrees and minutes
-70+40 is like subtracting 70 and 40, but adding a negative sign in front. The answer is -30
Similarities :Both alluvial fans and deltas deposit sediment.
Difference:
A delta forms when a river empties into a larger body of water. An alluvial fan forms on land where a river emerges from a mountainous area and flows out onto a more gently sloping plain. The decrease in slope causes the river to decelerate and deposit sediment, forming an alluvial fan.
Answer:
Rivers have been the backbone for nearly all human settlements for generations. Indeed, the development of many major cities in the world has been close to rivers which have been used by communities for meeting their essential needs for drinking water, irrigation, agriculture and the assimilation of their waste.
Explanation: Rivers and oceans are made up of water and water is our main source of living.
