Ecological Problems

Содержание

1. Ecological Problems
2. Ecology is the scientific study of the
3. Ecological problems are:• Overuse of pesticides• Climate
4. A pesticide is any substance or mixture
5. Climate change is a long-term change in
6. Urban, city, and town planning integrates land
7. Global warming is the increase in the
8. Genetically modified (GM) foods are foods derived
9. Solar power is the conversion of sunlight
10. Wind power is the conversion of wind
11. Recycling involves processing used materials (waste) into
12. Let's Save Our Planet
13. Скачать презентанцию

Ecology is the scientific study of the relation of living organisms to each other and their surroundings.Ecology includes the study of plant and animal populations, plant and animal communities and ecosystems.

Слайды и текст этой презентации

Слайд 1Ecological Problems

Слайд 2Ecology is the scientific study of the relation of living

organisms to each other and their surroundings.
Ecology includes the study

of plant and animal populations, plant and animal communities and ecosystems.

What is the Ecology???

Ecology is the scientific study of the relation of living organisms to each other and their surroundings.Ecology

Слайд 3Ecological problems are:
• Overuse of pesticides
• Climate change
• Urban development
•

Global warming
• Genetically modified foods
• Toxic waste
• Solar and wind

power
• Recycling scheme

Ecological problems are:• Overuse of pesticides• Climate change• Urban development• Global warming• Genetically modified foods• Toxic waste•

Слайд 4A pesticide is any substance or mixture of substances intended

for preventing, destroying, repelling or mitigating any pest.
Overuse of pesticides
A

pesticide may be a chemical substance, biological agent (such as a virus or bacterium), antimicrobial, disinfectant or device used against any pest.

A pesticide is any substance or mixture of substances intended for preventing, destroying, repelling or mitigating any

Слайд 5Climate change is a long-term change in the statistical distribution

of weather patterns over periods of time that range from

decades to millions of years.
It may be a change in the average weather conditions or a change in the distribution of weather events with respect to an average, for example, greater or fewer extreme weather events.
Climate change may be limited to a specific region, or may occur across the whole Earth.

Climate Change

Слайд 6Urban, city, and town planning integrates land use planning and

transportation planning to improve the built, economic and social environments

of communities.
Regional planning deals with a still larger environment, at a less detailed level.

Urban planning can include urban renewal, by adapting urban planning methods to existing cities suffering from decay and lack of investment

Urban development

Urban, city, and town planning integrates land use planning and transportation planning to improve the built, economic

Слайд 7Global warming is the increase in the average temperature of

Earth's near-surface air and oceans since the mid-20th century and

its projected continuation.

Global Warming

Слайд 8Genetically modified (GM) foods are foods derived from genetically modified

organisms. Genetically modified organisms have had specific changes introduced into

their DNA by genetic engineering techniques.
These techniques are much more precise than mutagenesis (mutation breeding) where an organism is exposed to radiation or chemicals to create a non-specific but stable change.

Genetically modified foods

Genetically modified (GM) foods are foods derived from genetically modified organisms. Genetically modified organisms have had specific

Слайд 9Solar power is the conversion of sunlight into electricity, either

directly using photovoltaics (PV), or indirectly using concentrated solar power

(CSP).

Solar Power

Слайд 10Wind power is the conversion of wind energy into a

useful form of energy, such as using wind turbines to

make electricity, wind mills for mechanical power, wind pumps for pumping water or drainage, or sails to propel ships.

Wind Power

Слайд 11Recycling involves processing used materials (waste) into new products to

prevent waste of potentially useful materials, reduce the consumption of

fresh raw materials, reduce energy usage, reduce air pollution (from incineration) and water pollution (from landfilling) by reducing the need for "conventional" waste disposal, and lower greenhouse gas emissions as compared to virgin production.

Recycling Scheme