why do some trees lose their leaves in winter

why do some trees lose their leaves in winter

Unlike herbaceous plants, deciduous trees stand tall all winter, minus some important accessories-leaves. What trigger causes leaves to fall in the autumn? To understand why leaves fall off, it helps to first understand what the job of a leaf actually is. Plants and other photosynthesizing organisms have a very special talent. They can turn sunlight into food. It is a pretty neat trick that only photoautotrophs can do (photo=sun; auto=self; troph=feeder). In order for plants to make food energy, they need water, carbon dioxide (CO2) and sunlight. From this special combination, a plant is able to make its own food, in the form of glucose, a type of sugar. Plants then use the glucose as food energy to live and grow. In order to harvest sunlight energy, plants have a green pigment called

 why vote if the electoral college decides

why vote if the electoral college decides

Technically, yes, the members of the electoral college could vote against the way the citizens they represent vote, but this has, to my knowledge, never actually happened. So really, it s better to ask, why do we lump voters together into the electoral votes we do? The answer is, essentially, that a popular vote would have some unwanted consequences. It would, for one, incentivize candidates to spend a disproportionate amount of their time on issues important to city dwellers, since the majority of Americans live in cities. ...

 why do my new hardwood floors squeak

why do my new hardwood floors squeak

Squeaky floors are a problem that almost all homeowners experience at some point. In order to fix a squeaky hardwood floor, you must first determine the cause. Here are some common causes of squeaky floors, along with possible remedies: Did you first notice the squeakiness during the winter? As the temperature gets colder, the air gets drier. The heat kicks on in your house, and the relative humidity drops. Wood is very susceptible to the conditions of its environment. In response to humidity changes, floorboards give up their moisture and often shrink in size during the winter. This contraction can cause squeaky floorboards. The planks rub up against each other or against the nails due to their increased capacity for movement. If the squeaks are accompanied by flooring gaps, itвs a

 woman who died from drinking too much water

woman who died from drinking too much water

A woman who competed in a radio stationБs contest to see how much water she could drink without going to the bathroom died of water intoxication, the coronerБs office said Saturday. Jennifer Strange, 28, was found dead Friday in her suburban Rancho Cordova home hours after taking part in the БHold Your Wee for a WiiБ contest in which KDND 107. 9 promised a Nintendo Wii video game system for the winner. БShe said to one of our supervisors that she was on her way home and her head was hurting her real bad,Б said Laura Rios, one of StrangeБs co-workers at Radiological Associates of Sacramento. БShe was crying and that was the last that anyone had heard from her. Б It was not immediately know how much water Strange consumed. A preliminary investigation found evidence Бconsistent with a water

 why earthquake risk is high in pakistan

why earthquake risk is high in pakistan

For years, seismic experts predicted that a big earthquake would hit the Himalayan region between India and Nepal. The Himalayas are being pushed upwards at the rate of about one a year as the Indian subcontinent smashes against the Eurasian plate a process that has been ongoing for millions for years. As the plates thrust against each other huge amounts of pressure builds up until it releases as an earthquake. The region a magnitude-8 earthquake approximately every 75 years, with the last in 1934. It killed about 10,000 people. Though it s impossible to predict exactly when or where big earthquakes will happen, areas where seismic activity meet underdevelopment and poverty are prone to the most devastation. In several places, the higher seismic risk overlaps with places with poor

 why do u want to work for boots

why do u want to work for boots

As the UKБs leading pharmacy-led health and beauty retailer and one of the countryБs most trusted High Street names, weБre evolving in the ever changing world of retail and the futureБs looking bright. We have over 60,000* talented colleagues working across pharmacy, optometry, in our support and distribution teams and in our 2,500* stores, plus we develop future talent on our amazing graduate and apprenticeship programmes - as well as through our award winning work experience scheme. To help us succeed and grow the business further, weБre always looking for the best people who love driving business performance by creating those Бfeel goodБ moments for our customers and their patients. ...

 why do the tips of my toes hurt

why do the tips of my toes hurt

in the toe can arise due to abnormalities or injury to any of the structures in the toe, including skin, nerves, bones, blood vessels, and soft tissues. Toe pain is a fairly common symptom, since our are constantly exposed to injury by, or other athletic activity, and moving around. Some types of toe can be accompanied by numbness, burning, warmth, or other symptoms. ...

 why has college tuition increased so much

why has college tuition increased so much

The price of a college education rose faster than inflation, again. The increase in average tuition and fees charged by public and private colleges rose between 2. 9% and 3. 6% this year, according to The College Board's Meanwhile, inflation remains. The average annual price rose by $300 at public four-year colleges for in-state students and by $800 at private colleges. "There are several factors driving the increase in prices," said Robert Kelchen, an assistant professor of higher education at Seton Hall University. A majority of a college's costs are related to employees, and their health care and benefits also continue to get more expensive, he said. Kelchen also points to as a factor that affects public colleges. In Vermont and New Hampshire, where in-state tuition is the highest in

 why do we prepare bank reconciliation statement

why do we prepare bank reconciliation statement

Bank reconciliation statement is a report which compares the bank balance as per company's accounting records with the balance stated in the bank statement. It is normal for a company's bank balance as per accounting records to differ from the balance as per bank statement due to timing differences. Certain transactions are recorded by the entity that are updated in the bank's system after a certain time lag. Likewise, some transactions are accounted for in the bank's financial system before the company incorporates them into its own accounting system. ...

 why do we celebrate jesus birthday on december 25

why do we celebrate jesus birthday on december 25

Roger A. Hendrix, a member of the Palos Verdes East Ward, Palos Verdes California Stake, is serving as president of the Chile Santiago South Mission. The simple answer to the question is that, regardless of whether or not April 6 is ChristБs birthdate, there is no compelling reason for Church members to go against a well-established holiday unless the Lord requires it of us. And there are at least three good reasons why we can feel comfortable observing the traditional date. First, apparently approved of the growing religious significance of the December 25 holiday. Despite Puritan attempts to ban Christmas celebrations in early New England, Christmas in Joseph SmithБs day continued to evolve from a time of Бfolksy convivialityБ into a religious event. Although Nauvoo school records

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