Isostasy

What is isostasy?

• Adjustment to flooding levels

• Where there is a change in land level relative to sea level

• Change in river level due to flooding

• The melting of ice sheets

A large body of water which is the lowest level that a river can erode to. A = ________ _________

(a)  

What is river rejuvenation?

What is a glacier

• An ice-cream

• A large body of ice that is slowly moving down a slope or valley

• A large body of rock that is slowly moving down a slope or valley

• A large body of ice that is slowly moving up a slope or valley

Erosion at the origin of a stream channel, causing the origin to move back away from the direction of the stream flow, and so causes the stream channel to lengthen. This is called = __________ ____________

• Lateral Erosion

• Vertical Erosion

• Wave Cut

• Headward Erosion

What is a graded profile?

• Convex and rough slope

• A convex and smooth slope

• A concave and rough slope

• A concave and smooth slope

The old base level, a part of a river where there is a sharp change in the channel's slope. A = ?

(a)  

The movement of land in relation to sea level. A = ?

(a)  

What direction does Ireland slope?

• East - West

• North - East

• South - North

• North - South

What is the result of the North - South Peneplain?

• Most rivers flowed north to south

• Most rivers flowed south to north

• Most rivers are long and slow moving

• Most rivers are short and fast moving