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All y’all better pass! Flashcards

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Biology 101 flashcards
1
Q

Lithosphere

What is the lithosphere?

A

Crust and the top most part of the upper mantle

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2
Q

Lithosphere

What is permafrost?

A

Frozen soil found in polar regions.During the summer the top layer thaws, plants grow during a short period of time.

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3
Q

Lithosphere

What are some consequences of melting permafrost?

A
  1. Land slides
  2. Impacting structure of houses
  3. Intensifying greenhouse gas effect( when permafrost melts the organic matter in it decomposes, releasing carbon dioxide and methane)
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4
Q

Lithosphere
Energy ressources

How are fossil fuels created?

A
  • Oil and natural gas come from marine animals and algae. When they died they sink to the bottom and are covered with sediment. Pressure turned them into oil.
  • Coal is formed the same way but in swamps
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5
Q

Lithosphere
Energy ressources

Consequences of fossil fuels.

A
  1. Non renewable

2. Burning fossil fuels release carbon dioxide and methane (main causes of climate change)

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6
Q

Lithosphere
Energy ressources

What is uranium?

A

A radio active element that produces a large amount of energy.

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7
Q

Lithosphere
Energy ressources

Consequences of uranium?

A
  1. Non renewable
  2. Produces a large amount of energy, if a radioactive explosion happens material and equipment stay radioactive for 100 of years.
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8
Q

Lithosphere

What is combustion and what are the elements needed for combustion to happen?

A

Combustion is a release of a large amount of energy resulting in a something burning ( fire ). The elements needed for combustion are:

  • a fuel
  • oxygen
  • heat
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9
Q

Lithosphere

Name and explain the 3 types of combustion.

A
  1. Rapid: in a short period of time releases a lot of energy( camp fire)
  2. Spontaneous: fuel reaches ignition temperature without an outside source (forest fire)
  3. Slow: occurs over a long period of time (rust)
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10
Q

What Is the carbon cycle?

A

Describes all exchanges of carbon on earth

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11
Q

Hydrosphere

What are two other words for catchment area?

A
  1. Drainage basin

2. Watershed

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12
Q

Hydrosphere

What is a catchment area?

A

An area of land whose lakes and rivers all flow to the same larger body of water.

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13
Q

Hydrosphere
Catchment area

What causes the water to flow the same direction?

A

The natural slope of the land causes water to flow in the same direction

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14
Q

Hydrosphere

What natural phenomenas (5 things) can affect how water flows inside a catchment area?

A
  1. Topography: shape,slope
  2. Geology: type,depth, structure of rock
  3. Climate: amount of rain or snowfall, winds and temperature
  4. Vegetation: density and diversity
  5. Human interference: agricultural,industrial and urban development
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15
Q

Hydrosphere

What is salinity?

A

The amount of salt dissolved in a liquid

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16
Q

Hydrosphere

How does the ocean water become salty?

A

From the seawater constantly smashing the rocks into each other, chipping them away and adding mineral salts to the water

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17
Q

Hydrosphere

Why does salt water have a greater density than freshwater?

A

Salt water contains more sodium chloride atoms that add to its mass

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18
Q

Hydrosphere

Near the poles, how do glaciers affect the salinity of the water?

A

Melting glaciers dilute the seawater and reduce its concentration of salt.

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19
Q

Hydrosphere

Why does the water near the equator have a higher salinity?

A

The heat makes water evaporate faster, leaving the salt behind, thus raising the concentration of salt.

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20
Q

Hydrosphere

How does the ocean circulate?

A

The ocean is in constant circulation due to waves,tides and currents

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21
Q

Hydrosphere

The ocean has 2 types of currents. What are they called and explain how they form?

A
  1. Surface currents: winds and tides

2. Subsurface currents: caused by changes in density. Denser the water= more it sinks

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22
Q

Hydrosphere

What is the huge conveyor belt that regulates the ocean currents called?

A

Thermohaline circulation

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23
Q

Hydrosphere

What is the thermohaline circulation responsible for?

A

Major transfers of heat around the world. Regulates climate on earth.

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24
Q

Hydrosphere

What is hydraulic energy?

A

The force of moving water generating electricity.

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25
Q

Hydrosphere

Why are the advantages to hydraulic energy?

A
  1. renewable
  2. Emits very little greenhouses gases
  3. Disadvantage:CAN RELEASE MERCURY CONTAMINATING FISH
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26
Q

Hydrosphere

What is pack ice?

A

Floating ice in the ocean near the north and south poles

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27
Q

Hydrosphere

What are glaciers?

A

Glaciers do not float on water, they are attached to land and are formed by compressed snow.

28
Q

Hydrosphere

Why do melting glaciers add to the rise in sea level but pack ice doesn’t?

A

Glaciers are not part of the ocean waters they are on land.pack ice is already part of the ocean because it floats on it.

29
Q

Atmosphere

Explain the greenhouse effect.

A

A natural process that allows the earth to keep heat it receives from the sun by 1. Absorbing suns UV rays in the lithosphere 2. Once ground is heated it releases infrared into the atmosphere and some into space 3. Greenhouse gases trap infrared rays heating the earth even more

30
Q

Atmosphere

How does global warming happen?what are the consequences?

A

When human activity emits too many greenhouse gases, it can cause the atmosphere to trap too much heat from the sun and can lead to changes in patterns of climate,precipitation and wind

31
Q

Atmosphere

Name some advantages and disadvantages of wind energy.

A 
Adv:
- renewable
- does not emit greenhouse gases 
 Dsv:
- sound pollution 
- impossible to predict
32
Q

Concentration

What is the formula to find concentration?

A

C=mass(grams)
——
Volume (liter)

Expressed in g/l

33
Q

Concentration

How can you express concentration in a percent?
Given the example 12g of coffee is dissolved in 250Ml of water. What is the coffees concentration in percent?

A

X = 12g
— —-
100ml 250ml
Solve for x, x is your percent

34
Q

Concentration
Express the following in parts per million.

5g/250ml = ? In ppm

A

5g = X
—— ——-
250ml 1 000 000

Solve for x

35
Q

Electrolytes

What is the formula for salt?

A

Metal (+)+ non metal (-)
In front of equation.
Salts are neutral

36
Q

Electrolytes

What is the formula for Acid?

A

H + non metal

At beginning of equation

37
Q

Electrolytes

Formula for bases?

A

Metal + OH

At beginning of equation

38
Q

Electrolytes

What is a neutralization?

A

The combination of acid and base

39
Q

What is ion?

A

An atom with a charge. If it gains it becomes negative, if it loses a charge it becomes positive.

40
Q

What is a group/columns in the periodic table?

A

Verticale= shows valence electrons

41
Q

What are period/rows on a periodic table?

A

Horizontal= shows electron shells

42
Q

Periodic Table

What column are alkali metals found in? Name some of their characteristics.

A

First column

  1. Soft and highly reactive
  2. Store in oil because they react to the moisture in the air
  3. Combine to form a compound
43
Q

Periodic table

What column are alkali earth metals found in? Name some of their characteristics.

A

Found in column 2

  1. Malleable and reactive
  2. Can be exposed to air
  3. Combine to form compounds
44
Q

Periodic table

What column are halogens found in? Name some of their characteristics.

A

Found in the second to last column

  1. Nonmetals
  2. Combine to for a compound
  3. Disinfectants
45
Q

Periodic table

What column are noble gases found in? Name some of their characteristics.

A

Found in last column

  1. Stable
  2. Exists alone
46
Q

How do you express the Rutherford-Bohr atomic model?

A
  1. You look at the period and see how many shells it contains.
  2. Check the atomic number( that is how many electrons you put)
  3. Draw the electrons on the shells(* Remember only 2 electrons on the first shell, 8 on the second one)
47
Q

What is the formula for energy efficiency?

A

E.E= Useful energy
—————— x100
Energy consumed

48
Q

A microwave produces 125000 J of radiation energy and 350 000 J of electrical energy. What is the energy efficiency?

A

125 000
————x100
350 000
= 35.7%

49
Q

How many valence electrons does barium have?

Check periodic table

A

2

50
Q

How many shells does iodine have?

Check periodic table

A

5

51
Q

How does photosynthesis play a role in the carbon cycle?

A

Plants use solar energy to capture carbon

——>changes in to glucose so plants can grow

52
Q

How does respiration play a role in the carbon cycle?

A

Living organisms exhale releasing co2

53
Q

How does ingestion play a role in the carbon cycle?

A

Animals eat plants to get carbon

54
Q

How does decomposition of waste play a role in the carbon cycle?

A

Carbon gets eliminated you urine,feces, death…then gets decomposed

55
Q

How do fossil fuels play a role in the carbon cycle?

A

Dead organism fall to the ocean floor,getting covered by sediment.the pressure turn them into coal or oil

56
Q

I occur over a long period of time… what type of combustion am I?

A

Slow

57
Q

I occur in a very short amount of time but release a lot of energy… What type of combustion am I?

A

Rapide

58
Q

Types of energy

I am energy from electrons in motion… what am I?

A

Electrical energy

59
Q

Types of energy

I produce energy from moving water… what am I?

A

Hydraulic energy

60
Q

Types of energy

I am energy derived from motion… What am I?

A

Mechanical energy

61
Q

I am energy from the sun… What am I?

A

Solar energy

62
Q

I am energy from moving air… what am I?

A

Wind energy

63
Q

I am energy obtained from moving particles… what am I?

A

Thermal energy

64
Q

I can be found in the electromagnetic spectrum…what type of energy am I?

A

Radiation energy

65
Q

I am an energy that is found in the bonds between atoms… What am I?

A

Chemical energy

Science (3 decks)

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