Physical weathering
the cause of cracks in rocks to expand as water seeps in and freezes.
What is ice wedging.
What is mantle?
Hot, slow flowing rock.
What do rock react with?
Oxygen and changes.
Water that when carried is broken down
What is erosion
What is deposition
What causes more weathering
What is more surface area.
What is mostly solid rock?
Geosphere
how is acid rain form and what happens when it hits a surface (rock).
Acid rain comes from pollution in the ocean and when it falls on rocks it breaks them down.
list four thing that cause erosion to occur.
Water,wind,gravity, and ice
what happens after streams erode rock and soil?
They eventually drop or deposit their load downstream.
Roots get into cracks, in rocks ,as plants grow what happens
It cack opens the rock.
What is liquid water on Earth?
Hydrosphere
What happens to a rock when other living things produce acids?
Rock starts to brake down.
What is sediment
Tiny grains of broken down rocks.
What is deposition?
The process by which eroded material is dropped.
Rocks forms deep in crust come up to surface , less pressure causes rock to expand and crack.
What is pressure
most of Earth’s ice is found in ?
In ice caps.
what causes rock to break down.
Lichen and moss grow on rocks releasing an acid That breaks down rocks.
What can erosion do to streams?
It can cause them to widen and deepen.
When does deposition occur And when does it normally happen?
Deposition occrs when gravity‘s downward pull on sediment that is greater than the push than cflowing water or wind A supi
the mechanical breakdown of rocks into smaller pieces that is caused by a natural process that does not change.
What is Physical weathering
Atmospheres absorb and reflect what ?
UV rays
Water dissolves minerals and later deposits them?
What are stalagmites and stalactites
Dissolves rocks in water and gets deposited in drop by drop forming ?
Stalagmites and stalactites
______________ are formed when rivers carry loads and drop it into a larger body of water.
What is a delta