intro

Question 1

universe

Answer 1

28 billion light years across

Question 2

how many galaxies estimated :

Answer 2

2 trillion

Question 3

the wide of the milkt way /how many stars

Answer 3

100,000 ligth year wide
100-400 bilion stars

Question 4

Andromeda

the nearest major galaxy of the milkyway/ where the solar system reside

resides:يقيم

Answer 4

2.537 light years away
152,000 light year wide

Question 5

solar system old

Answer 5

4.571 billion y/o

Question 6

which planet is closer to size to earth

Answer 6

venus/الزهره

it has themost carbion dioxide

Question 7

earth diameter =

Answer 7

Equaltorial diameter 12,756km
Polar diameter 12,713 km

Question 8

the concept of sustainability -

Answer 8

nature has sustained itself for billions of years using solar energy ,biodiversity
/lessons from nature that we can apply to our lifestyles and economics

Question 9

environment is…

Answer 9

..everything that isnt me
“around us”

Question 10

environmental science

Answer 10

nature science:
social science: geography,politics ,economics
humanities:ethics ,philosophy

modern development it deals with man, distribution, activities,

Question 11

appearanc of —
1 simple cell
2 multicellular
3 first major land
4 dinasors appears
5 dinasors diappears

Answer 11

1- 3.5 billion years ago
2- 1 billion years ago
3- 475 million years ago
4- 165 million years ago
5- 65 millions years ago

Question 12

homo sapiens arrives

Answer 12

200,000 years ago

Question 13

the three principles of Sustainability :

Answer 13

solar energy
biodiversity
chemical cycling

Question 14

resource

Answer 14

anything we obtain from envirnment to meet our needs

Question 15

Current need revolution is:

Answer 15

Sustainability revolution

Question 16

Chinas new affluent consumers is:

Answer 16

1-second largest oil consumers
2-two thirds of most polluted critics in china
3- next decade project largest consumers and producers of cars

Question 17

Natural systems have lipping points:
Ecological lipping pions is:

Answer 17

an irreversible shift in behavior at natural system

Question 18

Why environmental problems?

Answer 18

1-population growth2-wasteful and unsustainable 3-poverty 4 an exclusion environnanles costs from market place

Question 19

Harmful environmental impact due to:

Answer 19

High levels of consumption استهلاك
High levels of pollution
Unnecessary waste of resources

Question 20

Environmental ethics

Answer 20

What is right/wrong with how we treat theenvironment

Question 21

Planetary management worldview

Answer 21

We are separate and in charge of nature

Question 22

Stewardship worldview -

Answer 22

Manage earth for own benefits with ethical responsibility

Question 23

First time “ sustainable “ was used

Answer 23

1713 by European “sustained yield forestry”
Planting replacement seeding so forghskeep lumbering

Question 24

Sustainable

Answer 24

That which can be maintained over Time

Question 25

Five axioms of sustainability
One

Answer 25

1 Any Social ly that continues to use critical resources unsustainabley will collapse

*with exception :you can find a replacement resources

Question 26

axiom two

Answer 26

Population growth in the rates of c Consumption استهلاك of resources cannot be sustained I

Question 27

Axions three

Answer 27

To be sustainable, the use a renewable resources must proceed at rate is less than or equal the rate of natural replenishment تجديد

Question 28

axiom 4

Answer 28

use of nonrenewable resources must be declining

Question 29

axiom 5

Answer 29

sustainability requires that sustain introduced in the environment from human

Question 30

sustain science

Answer 30

population control
biodiversity
nutrient cycling
reliance on solar energy

Question 31

species:

Answer 31

Set of individuals who can wat produce fertile خصبه
8-100 million species

Question 32

species richness
species evennesses

Answer 32

number of different species in given area
relative abundance of each species

Question 33

sources of pollution:
1 point sources
2 non-point sources

Answer 33

1 easily identified: smokestack
2 cant easily identified:pesticides blown in air

Question 34

pollution cleanup
pollution prevention

Answer 34

output
input :reduce