<span>1. Weather is the state of the atmosphere, describing for example the
degree to which it is hot or cold, wet or dry, calm or stormy, clear or
cloudy.
2.i would describe what the weather is like or would be like, and give ideas, opinions or tips what to wear, if you need a safety equipement like umbrella, heavy coats...etc. Places that you can go in the town or area that doesn't have stormy clouds, rainy ,cloudy..etc
3</span>) 1. Protection
The atmosphere blocks out harmful rays from the
sun. The ozone layer, which lies in the stratosphere 11 to 50 kilometers
from the Earth's surface, blocks out many harmful forms of radiation.
Without the ozone layer, ultraviolet rays would destroy most life on
Earth. Gases in the atmosphere also hold in heat. The Earth's average
temperatures would fall below the freezing point of water without
atmospheric gases to hold enough heat. The balance between blocked
radiation and radiation allowed to reach the Earth makes life possible..
2.
Water
The Earth's atmosphere contains water. As water
evaporates or is given off by living organisms (respiration in animals,
transpiration in plants), it rises through the atmosphere and forms
clouds. Wind moves the clouds over the surface of the planet. When the
clouds condense into rain, snow or other forms of precipitation, the
water falls on the surface of the Earth. In this way, the atmosphere
regulates the balance of water on Earth and delivers precipitation to
areas that otherwise would not have water.
3.
Oxygen and Carbon Dioxide
Life on Earth needs the atmosphere
to breath. Animals take in breathable oxygen from the atmosphere and use
it to metabolize food into energy. Plants use carbon dioxide to grow
and sustain life. The balance between these two gases is important as
well: animals need enough oxygen to breathe and plants need carbon
dioxide, but too much carbon dioxide traps heat in the atmosphere,
leading to global warming.
4) you never know it could be still sunny , cloudy , stormy..etc
5)
Water is recycled through the water cycle. It evaporates from the
oceans, forms clouds, it rains (or snows), the rivers return the water
to the ocean.
The longest timescale of water anywhere in the cycle is in the deep
ocean (it stays there for several thousand years) and in deep ground
water (perhaps 10,000 years).
However, water is very slowly destroyed chemically in photosynthesis
(plants converting carbon dioxide and water to sugars and oxygen) and
recovered again in respiration (basically the reverse of photosynthesis
to make energy and CO2).
You can calculate how much water remains from the dinosaur age from
the total amount of water on the planet and the amount of water taken up
in photosynthesis per year.
The Earth's plants take up about 12,000 billion kg of water per year (we know that roughly from the CO2 they take up).
The total water on Earth is about 1400 billion billion kg. So within
about 100 million years most of the water will have been chemically
destroyed. Dinosaurs lived 65 million years ago.
So, SOME of the water we drink is the same water, but more than half is different water.
