It was believed that even numbers are unlucky.
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Explanation: </u>
It is an old superstitious belief that even numbers are unlucky. In respect of the same superstition, a gun salute is set off odd numbers.
It is a gesture of bestowing great honor on a significant individual. Since long back in history, symbolism has been denoted to every numerical known. Hence, firing a gun for a certain of an odd number of times symbolizes varied kinds of respect in every country.
Some countries fire shots 21 times because number seven is sacred and lucky. Hence 
Place theory – high frequency sounds
Frequency theory – low frequency sounds
Volley principle – mid-range sounds
These are the theories of hearing that explains the
perpetual processing of sound sensation. The place theory maybe the opposite of
frequency theory but the volley principle states that neural cells can
alternate firing which makes it in the mid-range.
Answer:
William used the tactic of a false retreat in an attempt the break the shield wall and lure English troops off the ridge. Harold's brother Tostig, joined forces with Harald Hardrada. The wind changed direction allowing William to sail to England when Harold was in the north defeating Harald Hardrada.
Explanation:
William changed his tactics and moved his archers from the front of the battlefield to behind the infantry. The change in position of the archers meant that, rather than flying over the heads of the horsecars, their arrows hit the Anglo- Saxon army squarely and caught them by surprise.
Answer:
1. one-third
2. rising
3. contagious
Explanation:
In the United States today, about _one-third_ of the population is obese, and this number is _rising_. A 2007 study titled "The Spread of Obesity in a Large Social Network Over 32 Years" showed that obesity was _contagious_.
Obesity is a medical condition in which excess body fat has accumulated to an extent that it may have a negative effect on health. People are generally considered obese when their body mass index (BMI), a measurement obtained by dividing a person's weight by the square of the person's height, is over 30 kg/m2; the range 25–30 kg/m2 is defined as overweight. Obesity increases the likelihood of various diseases and conditions, particularly cardiovascular diseases, type 2 diabetes, obstructive sleep apnea, certain types of cancer, osteoarthritis, and depression.
