General Knowledge 158
Test # 158
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2080 questions in 208 tests. Each test contains 10 questions.
Only 55% of Americans know that the sun is a star. .. More >>
1.a state of deterioration in metals caused by oxidation or chemical action
2.erosion by chemical action
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The Best bits of Brazil
Birdnerd paradise abounds in the Pantanal, one of the largest freshwater wetlands of its kind in the world.?Along with the riot of colour in the air, all sorts of aquatic and landbased beasties live in and around its waters. Jaguars and pumas roam around, as well as crocodiles, caimans and our personal favourite the crabeating fox. During the rainy season, about 80% of the plains are underwater, which allows all sorts of flora and fauna to flourish.
Standard English Grammar Test
Use hundred when there is a specific number, and use hundreds when you don't know or can't count how many. This rule also applies to thousand/thousands and million/millions. This skeleton is thousands of years old. This skeleton is three thousand years old.
When saying numbers, always use the singular form:
250 = Two hundred and fifty
Two hundreds and fifty
7,812 = Seven thousand, eight hundred and twelve
Seven thousands, eight hundreds and twelve
$10,000,000 = Ten million dollars
Ten millions of dollars
Advanced English Grammar Test