2007-01-24 21:52:48 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Weather
When autumn comes and winter is on its way, you’ll notice that it doesn’t stay light outside nearly as long as it did during the summer. That means that the leaves don’t get as much light as they used to, and the amount of chlorophyll starts to decrease.Remember, chlorophyll is what gives a leaf its green color, so as there is less chlorophyll, the leaves loose their strong green color.
2007-01-26 21:57:17 · answer #1 · answered by Anonymous · 1⤊ 0⤋
when weather changes...........the temperature, pressure, humidity, wind and the whole environment changes.
If the weather gets hotter, the temperature rises, as a result the air over the landmass gets heated up and becomes lighter, as it becomes lighter, the air moves up. Due to heating up of the air, the humidity level in the air decreases and the wind becomes drier. If this continues, the whole surrounding becomes unpleasant.
On the other hand, when it gets cool down, the temperature falls, the air becomes dense and its capacity to hold the water molecule increases. so the humidity also increases and it starts to rain. this brings in cool air and makes the surrounding pleasant.
2007-01-25 13:22:56 · answer #2 · answered by vidhya sagar 2 · 0⤊ 0⤋
when weather start changing say from winter to summer the day tempertature increases though the night temperature increases slightly.And finally the atomosphere gets hot.This is due to the position of earth in relation to the Sun.The high temp. causes cloud formation and movement of airs which in turn brings rain.These variation in temp. and humidity effects the human body.
2007-01-25 06:19:43 · answer #3 · answered by gaurav r 2 · 0⤊ 0⤋
... the weather - starts - to - change.
It gets darker (or brighter)... because of more (or less) clouds
The wind picks up (or dies out.)
Gusting Wind is a big sign of change. (increasing / decreasing)
Signs:
- "you can see the leaves are upside down in the trees" - windy
- all the cows are lying down... it's gonna rain (wives tale, or not?)
- animals get restless... bug storm coming
- wife is amorous - a blue moon (that's a joke.)
2007-01-25 06:03:44 · answer #4 · answered by marcus 4 · 0⤊ 0⤋
It changes because of pressure difference.
Just like water flows from higher ground to lower level, wind blows from higher atmospheric pressure to lower pressure. With it it brings cloud or clears the clouds........
2007-01-25 06:05:21 · answer #5 · answered by minootoo 7 · 0⤊ 0⤋
u'll get fever, vegetation changes, and season changes.....
2007-01-25 06:06:52 · answer #6 · answered by yap 3 · 0⤊ 0⤋