... to the ocean despite the dams, though no effective measures have been implemented due to cost or effects on energy and agriculture. Also, more recently, escaped Atlantic Salmon from aquaculture cages and their offspring are now competing with the native salmon. How depleted are native salmon and Steelhead populations, what has been done so far to boost the populations and has it been effective, and what can be done with dammed river to allow natural breeding? "Salmon Migration: Decisions, Decisions" no author Environmental News Thursday, "Columbia River Salmon Protection OK'd" no author Environmental News Tuesday, June 30, 1999 "Dam Busting Not Always the ...

... It was not their beliefs alone that led to their peer's views it was also the way each of them conducted themselves. Galileo worked his way to become a respected scientist by most of the intellectual community but he was also despised by many because of his background and because of his attitude towards others. Darwin was well respected by the intellectual community, but the difference was the way they conducted themselves when they were dealing with their hypothesizes. Galileo's Hypothesis Galileo was well known for standing up for what he believed in and pushing the things he wanted. He was constantly writing letters and engaging in debates over the ...

... a whole. IPM coordinates economically and environmentally acceptable methods of pest control with judicious and minimal use of toxic pesticides. IPM programs assess local conditions, including climate, crop characteristics, the biology of the pest species, and soil quality, to determine the best method of pest control. Tactics employed include better tillage to prevent soil erosion and introduction of beneficial insects that eat harmful species. Many pests that are attached to crop residues can be eliminated by plowing them underground. Simple paper or plastic barriers placed around fruit trees deter insects, which can also be attracted to light traps and destroye ...

... and the oxidation of natural methane. Carbon dioxide is caused by the consumption of fossil fuels only and it causes the possible greenhouse effect which has global warming as an outcome. Hydrocarbons are caused by the combustion of oil and petrol and it effects the environment with carcinogen. Carcinogen is a chemical agent that causes cancer. Sulphur dioxide is certainly one of the major atmospheric pollutants considered that it causes stinging eyes, lung damage, asthma, and acid rain. It is the result of coal-fired power stations. Nitrogen oxides that is produced by the exhaust of cars, causes pneumonia and asphyxia. The outcome of the well known dust particles i ...

... that founded the basic gist of the theory of photosynthesis in plants. My experiment involves testing different brands of plant food on plants to see what brand of plant food makes the plant grow the tallest. I will test three types of plant food on three sets of plants and one set with no food. I will water the plants all the same amount and let all the plants get the same amount of sun, then measure the height of all the plants at the end of six weeks and record the data. The first step of photosynthesis is the absorption of light by a chlorophyll molecule. "The energy of the absorbed photon is transferred from one chlorophyll molecule to another until it rea ...

... creates suction when the mouth is placed against an object, and the tongue is drawn back. In the inner part of the mouth and the edges of the tongue, there are many small, horny teeth. These are what the lamprey uses to pierce the flesh of fishes. The adult forms of lamprey die soon after spawning and reaching their mature form. Lampreys mostly live in freshwater streams and seas of temperate and subartic regions throughout the world, except for Southern Africa. The sea lamprey is a marine species. They are native to the Atlantic Coast of North America and Europe. In many areas it has adapted to a life cycle spent entirely in freshwater. The sea lamprey in ...

... There is a reason for all seasons, two of which are spring with its new beginning and autumn with its incipient decline. Mother nature wakes after a long restful sleep, stands, claps her hands, and calls spring to attention because this is the time of reawakening, a sudden surprising emergence after a period of concealed existence. I rise early because the days are becoming longer now. As I walk and explore this new morning, I cannot help but notice the activity that surrounds me. Gardens are being tilled and planted for the ground is warm and will soon break with sprouts of future bounty. Butterflies of every color are seen flittering and fluttering, whi ...

... of evidence the government has covered up, the number of sightings, and the uncountable number of abductions, will become a reality. The first reason that is going to be addressed, is the secrecy and Government coverup of UFOs. "National Security Agency, or NSA, an acronym often assumed by insiders to mean 'NEVER SAY ANYTHING' , (Stacey 40) " has been blamed for millions of UFO governmental cover-ups around the nation. "Our problem is with government secrecy, because it widens the gap between citizens and the government, making it much more difficult to participate in the democratic process (Stacey 40)," says Steven Aftergood while addressing UFO secrecy. The ...

... each proton one positive charge. Neutrons carry no charge. Every atom has the same number of electrons as there are protons, so, on the whole, it is electrically neutral. The electrons have discrete kinetic energy levels, which increase with the orbital radius. When atoms bond together to form a solid, the electron energy levels merge into bands. In electrical conductors, these bands are continuous but in insulators and semiconductors there is an "energy gap", in which no electron orbits can exist, between the inner valence band and outer conduction band [Book 1]. Valence electrons help to bind together the atoms in a solid by orbiting 2 adjacent nucleii, while co ...

... man and woman. Science has no part in producing a child and no one, no matter how intelligent, has any right to tamper with God's creations. It has been almost a hundred years since the first clone was ever created. In the year 1902, a German embryologist by the name of Hans Spermann used a strand of hair as a noose to split apart cells of a two-celled salamander embryo, and obtained a normal salamander from each cell. Thirty-six years later, Spermann used nuclear transportation to create a clone. He took the nucleus, the cellular structure that contains the most genetic material and controls growth and development, and removed it from an egg cell of an organism. Sp ...