Term Archives
Home Archive for Category: Easy
Cloning dates back to 1885 when the first study was conducted by German scientist Hans Adolf Eduard Driesch. In 1902, he cloned a set of twin salamanders by dividing an embryo into two separate, viable embryos. Since then, there have been many breakthroughs in cloning.
Here is a comprehensive list of words and jargon that define the urban world.
Possible Solutions for Cities
Humans are spreading across the planet in a way that is unsustainable. Cities, the places where most humans now live, are becoming bigger and more voracious exploiters of space than ever before.
Just over half the world's population now call cities home. Soon some 500 cities around the world will have more than 1 million people each. Within a couple of decades, says the UN.
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A global water crisis is already apparent to those who look beyond humans and consider what is happening to other species. Planet Earth is at the beginning of a mass extinction event that is eliminating species at a faster rate than at any time in the history of the planet. This is the sixth mass […]
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This unit explores the topic of water and water scarcity Freshwater is a natural resource that is vital for human survival and health. The Earth is a very wet planet, but only 2.53% of its water is fresh; the rest is seawater (UNESCO, 2003). There is currently much concern about the capacity of the Earth’s […]
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Renewable energy usually is believed to be a solution to the rising energy demands and as a measure against environmental damage. Is it really so?
Grammar Original: Making Sure Subject and Verb Agree
