Local and Environmental Issues/Problems

Affecting community

Major Causes

Kaingin Farming

Illegal logging

Conversion of agricultural lands to housing projects

Forest fires

Typhoons

I. DEFORESTATION - Rapid rate at which trees are cut down.

Effects

Soil erosion

Floods

Decrease in wildlife resources that will eventually lead to extinction

As a human population gets bigger, huge space is needed for shelter, for growing crops and for industries.

Cause: Deforestation

II. WILDLIFE DEPLETION –disappearance of wildlife species

EUTROPHICATION

major problem in lakes, rivers and ponds

Happens when the concentration of organic nutrients that comes from domestic garbage and thrown in a bodies of water, increases rapidly

III. Water Pollution

It usually happens when there is an increase in concentration of organic nutrients in bodies of water.

When does “FISH KILL” happen?

Toxic waste

Untreated sewage

Fertilizers run-offs from farm lands

Heavy metals, such as:

Lead

Mercury

cadium

WATER POLLUTANTS

Are toxic wastes produced in the making of paints, inks and electrical insulators

PCB or POLYCHLORINATED BIPHENYL

Is the build-up of pollutants in organism at higher trophic level in a food chain.

Through this PCB or polychlorinated biphenyl becomes concentrated in the body tissues of water organism

BIOLOGICAL MAGNIFICATION

IV. AIR POLLUTION

The trapping of heat by gases in the earth’s atmosphere

..\Videos\ENVIRONMENTAL SCIENCE\Global Warming , Green House Effect , Ozone Layer Video for Kids.mp4

GREENHOUSE EFFECT

An increase in the earth’s temperature from the rapid buildup of carbon dioxide and other gases

GLOBAL WARMING

Activities that destroy coastal areas:Deforestation, agricultural activities, and

mining activities

Dynamite fishing and muro-ami

Coastal areas conversion to beach resorts, residential areas

Overharvesting

V. Destruction of Coastal Resources

Known as ACID RAIN

Pollutants: Sulfur, nitrogen oxides – make rainwater even more acidic (with 5.6 pH or lower)

VI. Acid Precipitation

Means that a society should live under the carrying capacity of the environment

SUSTAINABLE DEVELOPMENT

1. Which of the following is NOT a major cause of Deforestation?

a. Illegal Logging

b. Kaingin Farming

c. Dynamite Fishing

d. Forest Fires

Let’s Take a Quiz

2. What do you call the rapid rate at which tress are cut down?

a. Air pollution

b. Water Pollution

c. Wildlife Depletion

d. Deforestation

Let’s Take a Quiz

3. What does PCB mean?

a. Polyconic Bonding

b. Polychlorinated biphenyl

c. Phylicodicated biphonyl

d. Philanchlorine bioxide

Let’s Take a Quiz

4. It happens when the concentration of organic nutrients that comes from domestic garbage and thrown in water?

a. Eutrophication

b. Biological Magnification

c. Deforestation

d. Acid Precipitation

Let’s Take a Quiz

5. It is the build up of pollutants in organisms at higher trophic levels in food chain?

a. Deforestation

b. Biological Magnification

c. Acid Precipitation

d. Eutrophication

Let’s Take a Quiz

6. It is known as ACID RAIN in which pollutants like sulfur and nitrogen oxides make water even more acidic?

a. Acid Precipitation

b. Eutrophication

c. Biological Magnification

d. Deforestation

Let’s Take a Quiz

7. It is a trapping of heat by gases in the earth’s atmosphere?

a. Global Warming

b. Greenhouse Effect

c. Air pollution

d. Water pollution

Let’s Take a Quiz

8. It is an increase in the earth’s temperature from the rapid build up of carbon dioxide and other gases?

a. Air pollution

b. Greenhouse Effect

c. Global Warming

d. Water pollution

Let’s Take a Quiz

9. Which of the following is NOT an air pollutants?

a. Oxygen

b. Carbon dioxide

c. nitrogen oxides

d. hydrocarbons

Let’s Take a Quiz

10. It means that a society should live under the carrying capacity of the environment.

a. Limiting Factors

b. Sustainable Development

c. Wildlife depletion

d. biodiversity

Let’s Take a Quiz

THANK YOU!

From: Sir RONELLE “CUTE” SAN

BUENAVENTURA