আপনার প্রতিষ্ঠানের লোগো সহ ডাউনলোড করতে প্রথমে লগইন করুন!
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A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন

A tube-well water was sampled for the presence of arsenic. It was found that 0.015 mg of arsenic was present in 500 mL of the tube-well water. The concentration of arsenic in the tube-well water was-

30 ppb

300 ppb

30 ppm

300 ppm

IUT2018আদর্শ গ্যাস সমীকরণরসায়ন দ্বিতীয় পত্রপরিবেশ রসায়ন