Science Again Unit 1

Question 1

What are the three categories of water contaminents?

Answer 1

Biological, Chemical, Physical

Question 2

What is the definition of biological contaminents

Answer 2

They are both visible & miccroscopi

Question 3

Definition of Chemical contaminnents

Answer 3

dissolved substances that come from natural proccesses or human activity

Question 4

Definitions of physical contaminents

Answer 4

All materials that do not dissolve in water

Question 5

What Are the 8 sources of water contamination

Answer 5

Leakage, Urban Runoff, Landfills, Mining, Pesticides, Industrial Waste, Radioactive Waste, animal waste/fertilizer

Question 6

contamination causes leakage

Answer 6

Chemical & Wastewater storage causes frequent leaks

Question 7

Urban Runoff contamination causes

Answer 7

A use of chemicals, oil and gasoline contributes

Question 8

Landfills contamination causes

Answer 8

Plastics, printer ink, medication battery acids

Question 9

MIning contamination causes

Answer 9

Fracking from the mining industry

Question 10

Fracking Definition

Answer 10

Waste

Question 11

Pesticides contamination causes

Answer 11

The chemicals can cause cancer & Death (DDT)

Question 12

Industrial Waste contamination causes

Answer 12

Industrial waste is waste in factories cooperations

Question 13

Radioactive waste contamination causes

Answer 13

When water is polluted with radiation it kills fish almost immediately

Question 14

Animal Waste/Fertilizer contamination causes

Answer 14

The Buildup of ammonia & Nitrates lead to nutrient pollution

Question 15

What are the 4 steps of Water treatment Plants

Answer 15

Coagulation & Flocculation, Sedimentation, Filtration, Disinfection

Question 16

Definition of Coagulation & Flocculation

Answer 16

When chemicals called coagulants (Flocc Particles) mix with water in flocculation basin

Question 17

What is removed in Coagulation and Flocculation

Answer 17

Flocc Particles, sludge

Question 18

Definition of Sedimentation

Answer 18

Sediments fall to the bottom

Question 19

What is removed in sedimentation

Answer 19

Sand Bacteria & Materials

Question 20

Filtration definition

Answer 20

Sand filter, and active carbon

Question 21

What does active carbon do

Answer 21

Improves taste and odor

Question 22

What is removed in filtration

Answer 22

Bacteria

Question 23

Disinfection Definition

Answer 23

Chlorine, ozon, (giant britta filter), UV rays

Question 24

What happens in disinfection

Answer 24

Chlorine UV & Ozone treatments are used

Question 25

6 Steps of Waste water treatment

Answer 25

Bar screening, Aerated Tanks, Sedimentation Tanks, Trickling Filter, Solids Contact Tanks, Secondary CLarifiers

Question 26

What steps are in Primary? What steps are in Secondary

Answer 26

Primary=1-3, Secondary 1-6

Question 27

What is removed in bar screening

Answer 27

Solid debris is removed form waste water. Large materials & Grit are settled out

Question 28

What happens in Aerated Tanks

Answer 28

Sand & Grit is settled out. Oils are skimmed and sludge is settled out

Question 29

What happens in sedimentation Tanks

Answer 29

Floating & Setting Fat & Oil float to the surface heavy organic materials settle to the ground bacteria consume organic materials

Question 30

What happens in trickling filters

Answer 30

Wastewater Sprays inside surfaces bacteria consumes organic Matter

Question 31

Which 2 steps are combined

Answer 31

4 & 5 (Trickling Filters & Solids Contact Tanks)

Question 32

What happens in solids contact tanks

Answer 32

Bacteria consume remaing saluable material bacteria clumps together after its filled up and settles to the bottom

Question 33

What happens in secondary clarifiers

Answer 33

Surface Water Flows to Oceans & Rivers

Question 34

How much of mexico city's water is from aquifers

Answer 34

50%

Question 35

Freshwater USe Graph

Answer 35

8%=Personal, 22%=Industry, 70%=Agriculture

Question 36

Water can be used as what kind of tool

Answer 36

Economic

Question 37

The price of water is low so what happens

Answer 37

It is neglected and over used

Question 38

What percent of water in Mexico city leaks

Answer 38

42

Question 39

What is happening because of Overuse of aquifers

Answer 39

It is sinking

Question 40

What happened with the brewery

Answer 40

Constellation brands was given water use to make a brewery with 750 jobs

Question 41

Why is the colarado river drying up

Answer 41

The water comes from a mountain, and less snow (bc global warming) means less water, and overuse because of large cities and farming communities in the dessert

Question 42

What crop is being grown in the dessert

Answer 42

alfalfa

Question 43

Who came to block the building of the Constellation brand plant

Answer 43

Protestors

Question 44

How much water does it take to make make a pair of jeans and t-shirt

Answer 44

20-40 K

Question 45

Cotton is one of the

Answer 45

thirstiest crops

Question 46

What chemical is used to dye jeans

Answer 46

Indigo

Question 47

What is an unrealistic solution

Answer 47

Not using any more cotton

Question 48

How do you reuse cotton

Answer 48

Shred old jeans and mix with wood pul (Tencel

Question 49

Recycled jeans use how much less water

Answer 49

6x

Question 50

4 Ways to use less water for fashion

Answer 50

Wash clothes, Buy Less, buy sustainable alternatives, buy good quality jeans

Question 51

How much cottong is grown each year

Answer 51

20 million tons

Question 52

Cotton makes up what percent of the world's textile

Answer 52

50

Question 53

How much water is in one cotton t-shirt? How much in linen t-shirt?

Answer 53

7,000 litres, 6.4 litres

Question 54

Hidden Water definition

Answer 54

Water used to create somehting but you can't see the water in the final product

Question 55

The amount of water neede to make a t-shirt is equal to what

Answer 55

The amount of water an adult will drink in 9 years