Importance of Aquatic Ecosystems

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Questions and Answers

What is one of the functions of aquatic ecosystems for humans?

A room for industrial activities

A source of water (correct)

A habitat for terrestrial animals

A place for space exploration

What do aquatic plants and animals provide?

Materials for construction

Commercial fishing opportunities

Fuel for transportation

Ecological functions for human survival (correct)

What is an example of the resources provided by aquatic ecosystems?

Land for agriculture

Food (correct)

Space for parking

Clean air

What is a recreational activity that humans can enjoy in aquatic ecosystems?

Tourism Signup and view all the answers

What is NOT a function of aquatic ecosystems for humans?

A source of energy Signup and view all the answers

What percentage of fresh water on Earth is found in surface water of lakes, rivers, and swamps?

0.3 percent Signup and view all the answers

Where do brooks usually get their water from?

Springs or seepage from underground aquifers Signup and view all the answers

What is the boiling point of water in Celsius?

100°C Signup and view all the answers

What is the percentage of oxygen in water by weight?

88.812 percent Signup and view all the answers

What is the relation between creeks, streams, and brooks?

They are all small bodies of water Signup and view all the answers

What percentage of an adult man's body is made up of water?

60% Signup and view all the answers

What is the primary purpose of water in the human body?

To bring nutrients to cells Signup and view all the answers

Why do humans need fresh water supplies every day?

To make up for losses from the lungs, skin, urine, and faeces Signup and view all the answers

What is a characteristic of lean muscle, fat, and bones in the human body?

They contain a significant amount of water Signup and view all the answers

What is the correct order of largest water bodies on Earth?

Oceans, seas, lakes, rivers Signup and view all the answers

What percentage of an adult woman's body is made up of water?

55% Signup and view all the answers

What is an important role of water in the human body?

To get rid of wastes Signup and view all the answers

What is a term used to describe any significant accumulation of water on the surface of Earth or another planet?

Waterbody Signup and view all the answers

Study Notes

Importance of Aquatic Ecosystems

Aquatic ecosystems provide humans with water, food, and materials.
They serve as a space for recreation, commercial fishing, and tourism, contributing to economic benefits.
Aquatic plants and animals play crucial ecological roles that are essential for human survival.
These ecosystems support a diverse range of aquatic life, maintaining the balance of ecosystems and supporting biodiversity.

Importance of Aquatic Ecosystems

Aquatic ecosystems provide water, food, materials, and a space for recreation, commercial fishing, and tourism
They support aquatic plants and animals, which are crucial for our survival through their ecological functions

Uses of Water

Water is essential for human life, quenching thirst, and performing household tasks
It is used for agricultural and industrial purposes
Water is a vital component of human physiology, forming the basis of blood, digestive juices, urine, and perspiration

Forms of Water

Water bodies come in diverse forms and configurations, ranging from large oceans and seas to small ponds
Examples of water forms include oceans, seas, lakes, rivers, ponds, waterfalls, etc.

Human Body Composition

In adult men, approximately 60% of their bodies are comprised of water
In adult women, about 55% of their bodies are made up of water, due to a higher proportion of fat tissue
Water is vital for human health, playing a key role in body functions such as nutrient transportation, waste removal, joint protection, and temperature maintenance

Distribution of Fresh Water

More than 68% of fresh water on Earth is found in icecaps and glaciers
About 30% is stored in ground water
Only around 0.3% of fresh water is found in surface water bodies like lakes, rivers, and swamps

Small Bodies of Water

Brooks are among the smallest bodies of water, often fed by springs or underground aquifers
Creeks and streams are also classified as small bodies of water, often flowing into larger bodies like rivers

Properties of Water

Water is a transparent, odorless, tasteless liquid, composed of hydrogen and oxygen (H 2 O)
It freezes at 32°F or 0°C and boils at 212°F or 100°C
Water contains 11.188% hydrogen and 88.812% oxygen by weight

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Description

This quiz explores the significance of aquatic ecosystems for human survival, including their role in providing water, food, materials, and supporting ecological functions. It also covers their importance for recreation, commercial activities, and tourism.