Answer:
e. To create valleys, glaciers have to be constantly advancing.
Explanation:
Although glaciers look like massive, solid blocks of ice, they actually move in a very slow manner, which is difficult to detect by the naked eye. The pressure that the glacier receives from the weight of the ice causes it to deform. As these changes occur, the melt water at the bottom of the glacier allows it to slide. It is this movement that allows for the formation of glaciers, as glaciers have to be constantly advancing in order to form valleys.
Answer:
1 2 4 3
Explanation:
1 2 and 4 go and then 3 leaks through after
Answer:
fertilizers, insecticides and pesticides are washed into water bodies, usually when they are being watered, these fertilizers grow algae and water plants at the surface of the water leaving minimal sunlight and oxygen to reach the marine life, this is called eutrophication.
Explanation:
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Answer:
Explanation:
1. Underwater volcano that never reaches above sea level
GUYOT
2. Underwater volcano whose top is eroded flat by waves
SEAMOUNT
3. Hot spring on rolling hills, this a dip between hills
SYNCLINE
4. volcanic neck break between rocks where a hanging wall rises relative to a footwall
REVERSE FAULT
5. Magma that filled the central vent that remains after the volcano has eroded
VOLCANIC NECK
6. Natural hot water on Earth's surface containing many minerals
HOTSPRING
7. A raised footwall block between normal fault creates this
HORST
8. Less than a mile in diameter; looks like a bowl at the top of a volcano
CALDERA
9. Over 1 mile in diameter; looks like a bowl over a volcano
CRATER
10.Created when a block with hanging walls slips down between normal faults
GRABEN
Answer:
Option: D. It cooled very slowly.
Explanation:
Iceland is known as the Land of Fire. The country is present in the plate boundary of the North American and Eurasian tectonic plates. Being on the top of the Ring of Fire, it has active volcanoes. Hexagonal basalt columns formed from a volcanic eruption. Basalt columns are the result of a cooling process that changes the appearance of the lava. Basalt is a volcanic rock rich in iron and magnesium created from the heated magma that emerges as lava during an eruption.
The photograph given below is from Icelandic national park Jokulsargljufur.
