Environment

Ammonia’s potential as a zero-carbon fuel

WHAT IS AMMONIA AND WHAT ARE THE ISSUES WITH IT? Ammonia is a chemical we have used to improve the yields of our crops for over 100 years. The main method of ammonia production involves releasing hydrogen and carbon dioxide (CO2) from natural gas (a fossil fuel). The hydrogen is

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The Sail Gedaim Weir 

WHAT IS A WEIR? A weir is a barrier built across a stream or river. It can be made out of wood, concrete, or a mixture of rocks, gravel, boulders and soil. Water pools behind a weir, spreading the water from the river or stream. This means that the water

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Why Lake Victoria Might Dry Up

Lake Victoria in East Africa is the continent’s largest lake and the biggest tropical lake in the world. It spans across Kenya, Uganda and Tanzania, and also supplies water to Rwanda and Burundi. However, Lake Victoria has completely dried up twice in the last 100,000 years. New research published in

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Why is Water Pollution an Important Issue?

Water pollution occurs when harmful substances enter a water supply, making the water toxic to humans or the environment. Sewage and chemical waste from factories is often dumped into water. Fertilisers used in farming, or minerals from mining can also run into streams. Human and animal waste products contain bacteria

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How do we get oil?

Oil is an incredibly valuable resource. We use it to make plastic, power vehicles and produce the chemicals we need, like lubricants and pesticides. Several Sub-Saharan countries are heavily involved in oil production, such as Nigeria and Angola. WHAT IS OIL? Oil is formed from tiny animals and plankton which

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GMOs: the science behind genetically altered crops

WHAT ARE GMOs? Genes are what give every living creature the specific characteristics it inherits. Your genes determine your specific height, the colour of your eyes and the shape of your nose, for example. GM stands for ‘genetically modified’. Genetic modification is the process by which the genes of a

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Why Is The Sky Blue?

INTRODUCTON A bright blue sky is universally associated with a sunny, cloudless day. This brilliant colour is the result of the interesting way the sunlight interacts with the Earth’s [wiki]atmosphere[/wiki]. DIFFERENT COLOURS OF LIGHT Most light sources, like the sun, give off ‘white light’. However, this light is in fact

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