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In which layer do auroras occur?

Score: 4.2/5 (41 votes) The thermosphere starts just above the mesospheremesosphereThe mesosphere is 22 miles (35 kilometers) thick. The air is still thin, so you wouldn't be able to breathe up in the mesosphere. › mesosphereMesosphere | NASA Space Place – NASA Science for Kids and extends to 6...

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Why can't poor countries print money?

Score: 4.7/5 (4 votes) So why can't governments just print money in normal times to pay for their policies? The short answer is inflation. Historically, when countries have simply printed money it leads to periods of rising prices — there's too many resources chasing too few goods.Why can&...

What is the calmest part of a hurricane?

Score: 4.6/5 (5 votes) Note the eye at the center. Skies are often clear above the eye and winds are relatively light. It is actually the calmest section of any hurricane. The eye is so calm because the now strong surface winds that converge towards the center never reach it.What is the calmest sect...

Why henna is not good for hair?

Score: 4.8/5 (63 votes) Now let's come to how henna is bad for hair. Black henna has a very toxic chemical in it called PPD (paraphenylenediamine), a chemical that is also present in most hair dyes that you buy or get in the salon. It is known to make the hair dyes more permanent and result in ...

Should you lube a new bike chain?

Score: 4.3/5 (32 votes) The factory lubricant all by itself is usually good for several hundred miles of service if the bike is not ridden in wet or dusty conditions. It is best not to apply any sort of lube to a new chain until it is clearly needed, because any wet lube you can apply will dilute th...

How to stop a zit from forming?

Score: 4.2/5 (75 votes) Here are 14 of them.Properly wash your face. To help prevent pimples, it's important to remove excess oil, dirt, and sweat daily. ... Know your skin type. Anyone can get pimples, no matter their skin type. ... Moisturize skin. ... Use over-the-counter acne treatments. .....

What is a toothed flat belt drive?

Score: 4.7/5 (46 votes) belt drives In belt drive. …crankshaft and camshafts is the toothed, or timing, belt. This is a flat belt with evenly spaced transverse teeth that fit in matching grooves on the periphery of the pulley. The positive drive these belts provide has many advantages but lacks over...

How tennis players are ranked?

Score: 4.1/5 (1 votes) Tennis rankings work based on a points system that adds up players' 18 best results in the previous 52 weeks. ... The number of points earned by the player depends on the round the player loses. The ITF hosts the Grand Slams and the ITF World Tour Circuit for both men and...

When teaching vocabulary pictures are?

Score: 4.7/5 (9 votes) PWIM, or Picture-Word Inductive Model (Calhoun, 1999) is a strategy that uses pictures as a starting point from which to teach a variety of English language components such as vocabulary, spelling, phonics, word structure, and even writing.Are pictures important in teaching vo...

What is extractive capitalism?

Score: 4.2/5 (1 votes) The term extractive capitalism captures the way in which our current political-economic system has created this crisis, extracting wealth from Earth, workers, and communities without fair payment or regard for the problems that ensue.What is extraction capitalism?Extractive ca...