Help With science test please???!!?

Question

All of the following are necessary for the formation of glaciers EXCEPT:
A. high winds
B. temperatures near or below freezing
C. snowfall
D. new snow added faster than the ice melts

2. The snowline is
A. the line at which ice and snow freeze during glacial periods.
B. the elevation above which ice and snow remain year-round.
C. the line above which ice and snow melt during glacial periods.
D. the line below which ice and snow continually accumulate.

3. A continental glacier is
A. a mass of ice that forms in the mountains, confined by local topography.
B. a mass of ice that is not confined by local topography.
C. a mass of ice driven by continental drift.
D. a massive ice sheet that forms in the mountains.

4. The process that causes the ice at the base of the glacier to melt and the glacier to slide is called
A. thermal dynamics.
B. ice slip.
C. river of ice process.
D. basal slip.

5. The process by which glaciers flow slowly as grains of ice deformed under pressure is known as
A. compound ice.
B. internal plastic flow.
C. gravitational flow pressure.
D. pack flow theory.

6. Glaciers are formed above the snowline by snowfields and
A. firn.
B. sediment.
C. organic matter.
D. strong winds.

7. Sections of the ice shelf which break off due to tidal action into the ocean are called
A. ice chunks.
B. ice sheets.
C. icebergs.
D. ice lands.

8. The size of a glacier can be attributed to
A. the polar winds.
B. snowfall and yearly temperatures.
C. the speed it travels downhill.
D. the amount of basal slip at the base of the glacier.

9. As glaciers move they pick up and carry or drag rocks and other sediment, this process is called
A. glacial repositioning.
B. glacial sediment drift.
C. glacial deposition.
D. glacial erosion.

10. When glaciers melt they leave behind rock and sediment resulting in
A. glacial deposition.
B. glacial repositioning.
C. glacial drift.
D. glacial erosion.

11. Which of the following are all features produced by glacial erosion?
A. cirque, arête, and till
B. horn, moraine, and kettle
C. cirque, horn, and arête
D. horn, arête, and kettle

12. Which of the following are all features formed by glacial deposition?
A. cirque, erratic, glacial drift, and moraine, kettle
B. till, erratic, glacial drift, moraine, and drumlin
C. kettle, erratic, glacial drift, moraine, and eccentric
D. arête, glacial lake, till, moraine, and kettle

13. Which of the following are three types of glacier lakes?
A. cirque, horn, and erratic
B. moraine formed, till, and cirque
C. outwash, till, and cirque
D. cirque, moraine formed, and kettle

14. The minerals that precipitate from evaporating glacier lakes are called
A. deposited minerals.
B. erratic minerals.
C. crystallites.
D. evaporites.

15. Theses kind of dry climate glacier lakes are a result of evaporation.
A. salt lakes
B. great lakes
C. dry lakes
D. eskers lakes

16. Erosion due to rivers create V-shaped valleys, glaciers create
A. wide valleys.
B. U-shaped valleys.
C. deep jagged valleys.
D. no noticeable change to the river valleys.

17. Which of the following is one theory that explains the cause of glacial periods?
A. Glacial periods may be caused by pollution.
B. Glacial periods may be caused by changes in Earth’s movement relative to the moon.
C. Glacial periods may be caused by cold air from the poles.
D. Glacial periods may be caused by volcanic dust that blocks sunlight.

18. Which of the following explains Milankovitch’s theory about ice ages?
A. Glacial periods start when volcanic dust blocks the sun’s rays.
B. Glacial periods depend on the Earth’s tilt and movement around the sun.
C. Glacial periods start when human-made pollution partially blocks
the sun’s rays.
D. Glacial periods start when global temperatures rise.

19. A period of cooler temperatures during an ice age is known as a(n)
A. glacial period.
B. freeze period.
C. interglacial period.
D. polar freeze period.

20. Currently, the Earth is in what period of the most recent ice age?
A. thaw period
B. glacial recessional period
C. interglacial period
D. glacial period

21. The length of an ice age is
A. typically short with extremely low temperatures.
B. typically long with mild temperatures.
C. dependent on the movement of the glaciers.
D. typically long and may contain several glacial and interglacial periods.

22. Which of the following is another glaciation theory supported by many scientists?
A. Glacial periods start when human-made pollution partially blocks the sun’s rays.
B. Changes in solar energy that are caused by varying amount of energy produced by the sun
C. Glacial periods start when glo

Answer 1

How retarded are you that you can't open your text book, do a simple google search or even common sense. You should do your own work and take pride in being able to accomplish things on your own. If you are really going to get other people to do your educational work, drop out of school and let others excel while you wither away to a blue collar minimum wage nobody which you were probably going to be anyway.

Answer 2

I probably shouldn't do this, but, what the hell, I need something to do. Lol, I would NEVER do this for someone in my class. I'd explain it, but never right out give them all the answers, but eh, anyways... Here goes:

1) A. Winds have nothing to do with the the formation of glaciers, except maybe to affect the amount of snowfall at one moment or another.

2) B. Consider the term "snowline". Above what line is snow constant?

3) C. Mountain glaciers are called Alpine Glaciers and are constricted by surrounding landforms. Continental Glaciers aren't.

4) D. Basal has to do with ice and water at the base or underbelly of a glacier.

5) Er... Not sure about this one. Either B. or D.

6) A. Firn is leftover snow from previous years which is topped by more recent snowfall.

7) C. This process is also known as iceberg calving.

8) All of these are possible, but B. is FAR the most likely candidate to be the answer your teacher/professor is looking for. Amount of snowfall and level of temperatures are what truly depend on the size, life, and length of a glacier.

9) D. Because this is how these particulates are acquired. These rocks are called erratics--when deposited.

10) A. I explained this one in #9.

11) C. Till, kettles, and moraines are all depositional features of Continental Glaciers. Except, those erosional features listed occur in mountainous areas, or by Alpine Glaciers.

12) B. Cirques & aretes are erosional features. Erratics are called as such because they're not native to the landscape with which they're deposited in, but they could be labeled as either depositional because of where they land or erosional referring where they came from. Eccentric has nothing to do with glaciers.

13) D. A horn is a peak; an erratic is a small to massive rock, pebbles to boulder-size; till is deposited sediment; outwash plain is where sediment is deposited. None of these contain a slight concave depression with which water can accumulate.

14) D. If my memory serves me correctly, any mineral that forms from water evaporation, whether salt or fresh water, are called evaporites. If not, crystallites is the next best guess.

15) A. Probably. This question is talking about "dry" climates. Most of North America, where once both Alpine and Continental Glaciers existed, have temperate climates, where there is ample rainfall. Only in the desertous area around Utah and Nevada (specifically) is there not enough rainfall to replenish the water supply. Less water means more salt.

16) B. This is because of the weight, expansive width, and the gouging tendencies of massive amounts of moving ice.

17) I'd bet on C. Pollution is human caused. Glacial periods have been around for hundreds of thousands of years. Human-made factories haven't. The moon has no other affect on the earth than the tides. It depends on what your teacher wants. Yes, periods of intense cooling can come from volcanic dust blocking incoming solar radiation, or sunlight, but it doesn't specifically cause glacial periods. Cold air certainly creates cooler temperatures which then causes snow to fall as precipitation rather than water. If this remains constant, then the continuous flow of cold air & increase in snowfall can be a major factor in inciting glacial periods. But it has to occur for a large length of time, not just for a year or two. That wouldn't do it.

18) B. A is a possibility, but knowing about the Milankovitch cycles myself, the answer is undoubtably B. He talks about eccentricity, axial tilt of the earth, and precession of the earth's orbit.

19) C. Think of "inter" as "in-between". So an interglacial period equals in-between glacial periods.

20) C. We're still in an ice age. This is technically an interglacial period. Most people DON'T know that. Hey, you learned something new!

21) D. Glacial periods last many thousands of years. The last time ice covered most of the northern hemisphere was about 10,000 years ago. We're due for another covering of ice any time now. That being said, this interglacial has lasted about 10,000 years! That's just ONE interglacial between many glacial periods.

I can't answer #22 because the options were cut off. I can tell you that B is unlikely, and that A is a pretty good candidate from what I CAN see.

Answer 3

no wonder you failed, you did'nt even answer the question, humans evolved from primate stock (and yes we are primates, just check out the linnaian classification of species for that. these species evoloved from mamal like reptiles during the triassic era (about 251 million years ago) called a therapsid, these creature where warm blooded and also gave birth to live young ( a common feature of taodays mammals including us) also you where asked how old is the earth. 6,000 years would only place us into ther agrticultural revolution of the ancient egyptian era and would miss out totally the stone age, bronze age and iron age. the true age of the earth is is about 4.54 billion years or 4.54x10-9 years old she was'nt mocking jesus she was marking the test as a scientist. put it this way, i'd have given you an F too as it is scientifically incorrect. and she is right. where is your proof,that god made the world in 6 days about 6,000 years. there is none!!!

Answer 4

Can't you just get all the answers from your teacher instead?

Because I don't know A LOT about science. Or you can always read a text book.