عنوان الموضوع : تحضير درس الانجليزية ص 68
مقدم من طرف منتديات العندليب

السلام عليكم اريد تحضير درس الانجليزية ص 68 (التصميم ) احتاجه غداا


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>>>> الرد الأول :

hellow agen
WRITE IT UP (p.68)
Interact with the students using the picture. The students will identify the different parts of the solar home and their functions. Explain the difficult vocabulary if necessary.
Ladies and gentlemen....
During winter, ouside air is captured by warm glass roof panels. Then,
warm air is forced down into a water tank by an air handling unit.
Next, the water in the tank is heated and greater quantities of warm water
air are released. The hot air is then sent down a duct to the crawlspace in
under-floor area. After that, warm water rises through floor registers to the
46 living space. Some of the heated air is absorbed by concrete slabs . It is
released at night. This process is reversed during summer.

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>>>> الرد الثاني :

شكرا لك يااخي ...................

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>>>> الرد الثالث :

طبعاااااااااا هدا واجبنا مرة عليكم ومرة علينا

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>>>> الرد الرابع :

merciiiiiiiiiii bcp

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>>>> الرد الخامس :

شكرااااااااا

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["]please i cherche a projet in inglish p58.عيشكم نحتاجو غدوى[I]]


10Ways to Conserve Soil

Plant trees: We all know that the roots of trees firmly
hold on to the soil. As trees grow tall, they also keep
rooting deeper into the soil. As the roots of the trees
spread deep into the layers of soil, they contribute to
the prevention of soil erosion. Soil that is under a
vegetative cover has hardly any chance of getting eroded
as the vegetative cover acts as a wind barrier as well.

Terraces: Terracing is one of the very good methods of
soil conservation. A terrace is a leveled section of a
hilly cultivated area. Owing to its unique structure, it
prevents the rapid surface runoff of water. Terracing
gives the landmass a stepped appearance thus slowing the
easy washing down of the soil. Dry stonewalling is a
method used to create terraces in which stone structures
are created without using mortar for binding.

No-till farming: When soil is prepared for farming by
ploughing it, the process is known as tiling. No-till
farming is a way of growing crops without disturbing it
through tillage. The process of tilling is beneficial in
mixing fertilizers in the soil, shaping it into rows and
preparing a surface for sowing. But the tilling activity
can lead to compaction of soil, loss of organic matter in
soil and the death of the organisms in soil. No-till
farming is a way to prevent the soil from being affected
by these adversities.

Contour ploughing: This practice of farming across the
slopes takes into account the slope gradient and the
elevation of soil across the slope. It is the method of
ploughing across the contour lines of a slope. This
method helps in slowing the water runoff and prevents the
soil from being washed away along the slope. Contour
ploughing also helps in the percolation of water into the
soil.

Crop rotation: Some pathogens tend to build up in soil if
the same crops are cultivated consecutively. Continuous
cultivation of the same crop also leads to an imbalance
in the fertility demands of the soil. To prevent these
adverse effects from taking place, crop rotation is
practiced. It is a method of growing a series of
dissimilar crops in an area sequentially. Crop rotation
also helps in the improvement of soil structure and
fertility.

Soil pH: The contamination of soil by addition of acidic
or basic pollutants and acid rains has an adverse effect
on the pH of soil. Soil pH is one of the determinants of
the availability of nutrients in soil. The uptake of
nutrients in plants is also governed to a certain extent,
by the soil pH. The maintenance of the most suitable
value of pH, is thus, essential for the conservation of
soil.

Water the soil: We water plants, we water the crops, but
do we water the soil? If the answer is negative, it is
high time we adopt the method of watering soil as a
measure of conserving soil. Watering the soil along with
the plants is a way to prevent soil erosion caused by
wind.

Salinity management: The salinity of soil that is caused
by the excessive accumulation of salts, has a negative
effect on the ****bolism of the crops in soil. Salinity
of soil is detrimental to the vegetative life in the
soil. The death of vegetation is bound to cause soil
erosion. Hence, salinity management is one of the
indirect ways to conserve soil.

Soil organisms: Organisms like earthworms and others
benefiting the soil should be promoted. Earthworms,
through aeration of soil, enhance the availability of
macronutrients in soil. They also enhance the porosity of
soil. The helpful organisms of soil promote its fertility
and form an element in the conservation of soil.

Indigenous Crops: Planting of native crops is known to be
beneficial for soil conservation. If non-native plants
are grown, the fields should be bordered by indigenous
crops to prevent soil erosion and achieve soil
conservation.]

Thanx so much for this help

ارجو ان تقدمو لي الفقرة ل task 04 p 66