Water around the world and Fin

Question 1

% of salt water?

Answer 1

97%

Question 2

When it is appropriate to use salt water for drinking purposes?

Answer 2

When there is no fresh water available

Question 3

% of water available for mankind is?

Answer 3

0,5%

Question 4

Where can water be found?

Answer 4

Bogs, marshes, springs etc.

Question 5

Basic circulation of water?

Answer 5

Rain
Infiltration OR Surface run-off
Groundwater
Evaporation

Question 6

What is the main problem with available water sources?

Answer 6

There is enough but the uneven distribution is the problem

Question 7

Global consumption of water (of 100 %):

Answer 7

Irrigation (70%)
Industry (20%)
Domestic (tap) water (10%)

Question 8

Future of water related to humans?

Answer 8

Population will grow, consumption patters increase and climate change makes water problem more difficult.
Surface and ground water reserves all already dying.

Question 9

In theory water resources are adequate, what is the problem?

Answer 9

Uneven distribution.

Well-eroded soils retain water well, large part of it is absorbed into groundwater.

Question 10

Does human activity impact water quality?

Answer 10

Yes, because of chemicals, land drainage, reservoirs, canals or irrigation.
In terms of protection, in addition to quality, quantity must be considered.

Question 11

Risks of drinking water due to population growth and industry:

Answer 11

Microbes (E-coli etc)

Chemicals (arsenic, copper, etc.)

Question 12

What is the aim of water supply?

Answer 12

To guarantee the availability of:
High-quality domestic water
Proper drainage
Wastewater treatment

Question 13

Where does water supply starts and ends?

Answer 13

Raw water source -> sludge from the treatment plant has been used for land improvement.

Water supply also includes the collection and treatment of rainwater and meltwater

Question 14

Who are responsible of water supply?

Answer 14

Owners or occupiers for their own property.

Water supple companies are responsible for arranging water supply in their area of occupation.

Municipalities are responsible for the general development and organization of water supply.

Question 15

Who are responsible of health- and environmental issues related to water supply?

Answer 15

Health authorities monitor the quality of domestic water.

Environmental protection authorities monitor wastewater treatment and the state of environment.

Question 16

What does the network of water supply plants consists of?

Answer 16

Water supply network, sewage and storm sewer networks and related pumping stations.

In agglomerations, wastewater is collected in the sewers of a water supply plant for further treatment at wastewater treatment plants.

Question 17

The most common problem in groundwater:

Answer 17

Iron and manganese content, and acidity.

Question 18

What does sewerage plants include?

Answer 18

All the structures and equipment needed in the community to collect, drain, treat, and return water used for various purposes to the natural environment.

The sewer plant does NOT include the internal wiring and equipment of properties.

Question 19

Which water is more better quality?

Answer 19

Groundwater. Surface water is more exposed to various factors that impair its quality (load from land or air, heat fluctuations, evaporation etc.)