Environmental science exam 1

studied byStudied by 1 person
0.0(0)
Get a hint
Hint

Global warming has increased by x% in the last 200 years

1 / 198

flashcard set

Earn XP

199 Terms

1

Global warming has increased by x% in the last 200 years

35%

New cards
2

The more CO2 is released causes the Earth to

heat up

New cards
3

Nature preserves increased by x% including marine area’s

12%

New cards
4

How many people lack access to clean water?

9% or 600 million people

New cards
5

How many lack safe sanitation

32% or 2.4 billion people

New cards
6

How many children die to water related problems

5 million

New cards
7

¾ of people will struggle for

sustainable water supply

New cards
8

how many primates have we lost

half

New cards
9

define what a sustainable development is

Improvement of life, without compromising the ability for future generations to meet their needs

New cards
10

What was the purpose of 1992 Earth Summit in Rio de Janeiro?

They were trying to start a sustainable development because they had nearly 700 million people below the poverty line

New cards
11

In 2015 The United Nations identified 17 goals. What was the purpose of those goals?

End poverty, protect the planet and ensure prosperity for all

New cards
12

what would consider to be “extreme poverty”?

41,000$ per year

New cards
13

What ratio or percent of the world population do live in middle- or low income countries?

5/6

New cards
14

define total fertility

Average number of children born alive during a women's life time

New cards
15

What is the replacement rate? What is the significance of the fraction 0.1 per the replacement rate?

2.1, 0.1 accounting for a child dying before reaching the age of reproduction. 1.78 for replacement.

New cards
16

What is GDP/person?

General gross production

New cards
17

What is the replacement rate for U.S.?

1.78, 4% less born in the US compared to 2020

New cards
18

what was the view of John Muir

Muir had the opinion nature deserve to exist for its own sake (biocentric view)

New cards
19

what was the view of Aldo Leopold?

Leopold believed we should care for the land and love it since it belongs to someone and it shouldn't be abused.

New cards
20

What was the purpose of Green Belt Movement?

Restore the environment that planted 30 million tree's.

New cards
21

What was “Silence Spring” concerned with?

Led by Rachel Carlson focused on the pollution caused by pesticides.

New cards
22

What is Keystone XL Pipeline Project? Is it good for the environment?

Transporting oil from Canada to Texas, no it was not good for the environment.

New cards
23

Who led the greenbelt movement

Wangari maathai

New cards
24

Who led the green economy for everyone movement

anthony kapel van jones

New cards
25

Who led the silence spring movement

rachel carlson

New cards
26

Who led the biocentric view movement

john muir

New cards
27

Who led the action group 350.org movement

bill mckibben

New cards
28

Who led the utilitarian conservation movement

gifford pichot

New cards
29

Who led the published man and nature movement

george perkin marsh

New cards
30

What is Biocapacity/ How much is it per capita?

Biocapacity is the max of each footprint, and per capita it's 2.7

New cards
31

What is ecological footprint?

Ecological footprint is resource consumption compared to nations and their citizens

New cards
32

what is the ecological footprint unit

GHA

New cards
33

What is the ecological footprint per capita in U.S.?

the ecological footprint per capita is 2.47

New cards
34

How would you define Moral extensionist

to extend consideration past humans

New cards
35

How would you define Toxic Colonialism?

refers to the practice of exporting hazardous waste from developed countries to underdeveloped ones for disposal

New cards
36

What is a hypothesis

Hypothesis is an educated guess

New cards
37

What is a theory

theory is a stronger statement than hypothesis and is supported by tests

New cards
38

what is the independent variable

the factor manipulated to observe its effect

New cards
39

what is the dependent variable

the measured / observed

New cards
40

Accuracy is

how close a measurement is to the correct value

New cards
41

Precision is

being exact in how close two measurements are to each other.

New cards
42

What is raw data

data that hasnt been processed for us to read properly

New cards
43

Photosynthesis equation

6O2 + 6H2O → C6H12O6 + 6O2

New cards
44

Protons are

positive weighing 1 AMU

New cards
45

Electrons are

Negative, without mass

New cards
46

Neutrons are

Neutral weighing 1 AMU

New cards
47

Atomic Number is

e number of protons.

New cards
48

Atomic Mass is

The sum of number of protons and number of neutrons for a given atom.

New cards
49

isotopes are

atoms with the same amount of protons but different neutrons

New cards
50

Compound is

a substance composed of different kinds of atoms.

New cards
51

Molecule is

Two or more atoms joined together such as oxygen gas molecule

New cards
52

Chemical Bonds

Store energy and are holding atoms together in molecules and compounds

New cards
53

Hydron bonds

are weak such as bonds in water molecule

New cards
54

Ionic bonds

chemical connection that a atom loses valence electrons and gains them from another

New cards
55

Covalent bonds

toms share electrons (but not always equally).

New cards
56

Reduction Reaction

when the atom(s) of a substance gains electron(s)

New cards
57

Oxidized reaction

When an atom of a substance loses electron(s), it becomes positive

New cards
58

Activation Energy

a minimum energy input is necessary to start the reaction

New cards
59

Ions

an atom is neutral( Its number of protons and electrons are equal)

New cards
60

cation

a positive ion

New cards
61

Anion

a negative ion

New cards
62

What is the neutral acidity

7.0

New cards
63

what is acidic range?

0 to 7

New cards
64

what is alkali range?

7 to 14

New cards
65

Organic Compounds

Material making up biomolecules

New cards
66

Four major categories of organic compounds

Lipids, Carbohydrates, Proteins and Nucleic Acids

New cards
67

Cells

are the smallest unit of life classified as prokaryotes

New cards
68

Eukaryotes are

plants, animals, fungi, etc (contains chloroplast)

New cards
69

Function of a chloroplast

photosynthesis to synthesize carbohydrates and to release oxygen

New cards
70

Function of a mitochondrion

breakdown carbohydrate via cellular respiration to release energy and CO2

New cards
71

Enzymes

usually proteins but not all proteins are enzymes.

New cards
72

Metabolism

ultitude of enzymatic reactions performed by an organism

New cards
73

Thermodynamics

Energy must be supplied (from the sun) to keep biological processes running,

New cards
74

First Law of Thermodynamics -

Energy is neither created nor destroyed

New cards
75

archaea are

a organism that can get energy through inorganic compounds like sulfur

New cards
76

chemosynthesis

sulfur that bubble up from vents in the sea floor or from hot springs

New cards
77
New cards
78
New cards
79

About what percent of solar radiation is visible Light?

45%

New cards
80

About what percent of sunlight reaching the surface Is used for photosynthesis by plants?

1-2%

New cards
81

What is the range of wavelength for visible light?

0.1-1

New cards
82

Cellular Respiration equation

6H12O6 + 6O2 --> 6CO2 + 6H2O + Chemical Energy

New cards
83

Cellular respiration happens by

splitting carbon and hydrogen atoms from sugar and recombines them with oxygen to produce carbon dioxide and water. Breaking down of carbohydrate(glucose) to release energy

New cards
84

Tertiary consumers

Usually top carnivores

New cards
85

Secondary consumers

Carnivores

New cards
86

Primary consumers

Herbivores

New cards
87

Producers

Plants, algae, bacteria, etc.

New cards
88

Consumers that feed all levels

parasites, scavengers, decomposers

New cards
89

trophic level

Plants that are at the producer level while animals are consumers

New cards
90

Hydrologic Cycle

Path of water through the environment.

New cards
91

What drives the hydrologic cycle

Solar energy

New cards
92

most of the precipitation occurs over

the ocean

New cards
93

What are the 3 most important functions in hydrologic cycle

Evaporation, condensation, precipitation

New cards
94

Carbon source is

The parts of the cycle that release carbon dioxide

New cards
95

Carbon sink is

The parts of the cycle that remove carbon dioxide from the atmosphere

New cards
96

Nitrogen Cycle is

processes by which nitrogen and its compounds are interconverted in the environment

New cards
97

Nitrogen fixing bacteria

changes nitrogen to a more useful form, combining it with hydrogen to make ammonia (used for plants to make proteins)

New cards
98

denitrifying bacteria

breaks down nitrates into nitrogen gas (released back out)

New cards
99

nitrification

converts ammonia to nitrate

New cards
100

Evolution

A slow, sustained heritable change in individuals of a population from one generation to the next

New cards

Explore top notes

note Note
studied byStudied by 16 people
... ago
5.0(1)
note Note
studied byStudied by 13 people
... ago
5.0(1)
note Note
studied byStudied by 24 people
... ago
5.0(3)
note Note
studied byStudied by 13 people
... ago
5.0(1)
note Note
studied byStudied by 47 people
... ago
5.0(2)
note Note
studied byStudied by 10 people
... ago
5.0(1)
note Note
studied byStudied by 87 people
... ago
5.0(1)

Explore top flashcards

flashcards Flashcard (183)
studied byStudied by 6 people
... ago
5.0(1)
flashcards Flashcard (48)
studied byStudied by 3 people
... ago
5.0(1)
flashcards Flashcard (111)
studied byStudied by 32 people
... ago
5.0(4)
flashcards Flashcard (111)
studied byStudied by 38 people
... ago
5.0(1)
flashcards Flashcard (132)
studied byStudied by 34 people
... ago
5.0(1)
flashcards Flashcard (28)
studied byStudied by 19 people
... ago
5.0(1)
flashcards Flashcard (108)
studied byStudied by 6 people
... ago
5.0(1)
flashcards Flashcard (201)
studied byStudied by 22 people
... ago
4.0(1)
robot