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শিক্ষাবর্ষঃ ২০১৮-২০১৯ || খুলনা প্রকৌশল ও প্রযুক্তি বিশ্ববিদ্যালয় (কুয়েট) || 2018

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M10 MgSO4   দ্রবণ
M10 NaCl দ্রবণ
     M10 FeCl3  দ্রবণ
           M10 Na2CO3 দ্রবণে
  M10 NH4Cl   দ্রবণে
If I had the wings of a bird .
I wish to have the wings of a birs
I pray, I had the wings of a bird.
I had the wings of a bird
I wish , I had sthe wings of a bird
A red rose was seen by Jesmin going into the garden .
Jesmin saw a red rose going into the garden
Jesmin went to the garden to see a read rose.
Going to the garden Jesmin saw a red rose .
While Jesmine went to the garden saw a red rose.

Providing enough energy to meet an ever-increasing demand is one of the gravest problems the world now facing . Energy is the key to an industrialized economy which calls for a doubling of electrical output every ten to twelve years. Meanwhile, the day's cheap, abundant and environmentally acceptable power may be coming to an end.  Coal is plentiful but polluting, natural gas is scaring, and oil is not found everywhere, Nuclear power now appears costly and risky. In many countries of the world, keen interest is being shown in new energy sources. Among the familiar but largely undeveloped sources, solar energy, thermal energy, and energy from ocean deserve special consideration. Scientists are working to tap the energy from the ocean and sun. If they are fully successful, it will mean that we have an abundant and uninterrupted supply of cheap energy. This energy will be clean and will not contribute to environmental pollution. 

Providing enough energy
Risk of energy Sources
Environment pollution
Scare of natural gas
Cost of energy
Nuclear and coal
Solar and oceanic
Wind and coal
Gas and oil
Coal and solar
Avi asked Supti how she was .
Avi asked Supti if she was well.
Avi asked and greeted Supti how she was.
Avi greeted Supti to ask her how she was.
Ari greeted Supti and asked her how she was.