Cost Is this a cheap energy resource to use? Are the start up costs minimal or large? Are the operation costs minimal or large? Does there need to be more research? Availability and Accessibility Availability Is this energy resource one we can harness now? Is it in the research process? Is there lots of supply…
What is an Environmental Contaminant? Environmental contaminants are substances that, when accidentally or deliberately introduced into the environment, may have the potential to harm people, wildlife and plants. Some of these contaminants may have been manufactured for industrial use and because they are very stable, they do not break down easily. If released to the…
Humans come into contact with harmful contaminants in many ways. We may: eat food that carries toxin residues touch contaminated soils absorb radiation or chemical vapors through our skin drink polluted water inhale gases and particulates as we breathe Determining how much exposure of a contaminant is safe is a multi step process that involves…
Energy Types Energy sources are classified as either renewable or non-renewable A renewable energy resource is one that can be replaced after use by regrowth, reproduction or replacement within a reasonable time frame (usually one human lifespan). Examples include solar, wind, tidal, thermal and hydroelectric A non-renewable resource is one that cannot be replaced after…
What is Agriculture? Agriculture is the production of food and goods through farming and forestry. The development of agricultural techniques is credited for creating food surpluses that enabled the development of more densely populated societies with distinct classes Agriculture uses many techniques, to expand the lands suitable for plant raising. For example: Digging water-channels and…
The basics Environmental issues are particularly difficult to solve because often the solutions require sacrifice It is difficult to convince a population of people to trade in quality of life and convenience for the greater environmental good This is evident with North America’s obsession with big cars, SUVs and Trucks When considering an environmental issue…
Efficiency Energy efficiency is one area that scientists are focusing on to decrease the worlds overall energy use Energy efficiency in buildings is one of the top priorities in energy conservation There are many different ways that we can make an older building more energy efficient Simple ways to improve a building’s efficiency Insulate and…
Goldilocks Principle Venus is too hot, Mars is too cold but Earth is just right Earth’s average temperature sits between the boiling and freezing temperatures of water. This makes it ideal for life Insulating gas blanket Earth’s “perfect” surface temperature for life is often thought to be because of it’s orbit distance from the Sun.…
There are many different types of Waste Solid Waste Liquid Waste Gaseous Waste Animal by-products Biodegradable waste Biomedical waste Chemical waste Commercial waste Construction and demolition waste (C&D waste) Electronic waste (E-waste) Green waste Grey water Hazardous waste or Toxic Waste Human waste Industrial waste Radioactive waste Recyclable waste Sewage Slaughterhouse waste Wastewater Industrial Waste…
The Air We Breathe Clean dry air is a mixture of 4 main gasses: 78.08% is Nitrogen 20.95% is Oxygen 0.934 is Argon 0.035% is Carbon Dioxide Water vapour, Neon, Helium, Methane, Krypton, Hydrogen, Carbon Monoxide, Xenon, Ozone, Nitrogen Oxides, Sulfur Oxides and Hydrogen Sulfide are found in trace amounts Air Pollution An imbalance in…
Plant History Canada has at least 5000 different plant species. These range from flowering plants, to large trees, to agricultural plants The earliest plant is believed to have evolved 430 million years ago The first land plants were mosses and ferns All land plant life can be traced back to those species. Classification of Plants:…
#1 Climate Change The increase in greenhouse gasses (mainly CO2, CH4, and NOs) due to the burning of fossil fuels is causing a general increase in the average global surface temperature More greenhouse gasses are causing more of the sun’s and earth’s radiation to be trapped in our atmosphere Some areas are expected to experience…
Random change Key factors that can cause evolution: –Small populations are more variable to changes in allele frequencies -non-random mating opportunities result in only those “preferred” traits being passed onto future populations –new alleles may be created when mutations occur (changes the frequencies of new and original alleles) -migration causes changes in the relative abundance…
Change in an organism’s physical structure or behavior that improves its ability to survive in its habitat Anything that helps an organism survives in its environment is an adaptation Adaptation also refers to organisms’ ability to adjust to various conditions within their environment Examples: change in the size of bird’s beak, development of sharp teeth…
Introduction Acidic pollutants can be deposited from the atmosphere to the Earth’s surface in wet and dry forms. The common term to describe this process is acid deposition. The term acid precipitation is used to specifically describe wet forms of acid pollution that can be found in rain, sleet, snow, fog, and cloud vapor. An…
January-Twelfth Night Celebrated evening of January 5 Celebrates the end of Christmas February-Valentines Day February 14th was the day of Valentines Day. Celebrates love. March – Easter Easter was suppose to resemble religious mysteries and the humans urges we have towards light and warmth April- All Fool’s Day Celebrated April 1 Everything is backwards on…
Art Paintings showed nature and peoples feelings Artists studied perspective and used types of form, color, and shape Paintings became more realistic and less religious Artists – Leonardo Da Vinci: Born in 1452 in the village of Vinci The most famous works are The Mona Lisa and The Last Supper Died in 1519 Michelangelo Buonarroti:…
The Qur’an -“Qur’an” means recitation -The revelations that Muhammad received through Gabriel are literally the Word of God -This distinguishes it from other sacred writings (e.g. the Torah, the Bible) -Even translations from Arabic are considered suspect -The Qur’an was revealed to Muhammad over a period of 23 years -He remembered them and taught his…
Islam shares a common history with Christianity and Judaism up until the time of Abraham. Muslims believe that the Prophet Muhammad is a descendant of Ishmael, the son that Abraham had with Hagar and then banished. Abraham, Moses, Jesus, and Muhammad are all considered to be prophets who attempted to reveal Allah’s will to humankind.…
Muslim belief can be summarized in a creed called the Shahadah: “There is no god but God and Muhammad is the messenger of God” This idea is central to Islam, and all other beliefs and traditions are based on it God God’s proper name is Allah Allah is omnipresent (all-present), omniscient (all-knowing), and omnipotent (all-powerful)…