Calcium salts used as fertilizer is:

To make a high quality fertilizer, a seller mixes 26 kg of type A fertilizer at Tk 20 per kg with 30 kg of type B fertilizer at Tk 36 per kg an sells the mixture at Tk. 30 per kg. What is her profit percentage?

A

No profit, no loss

B

5%

C

8%

D

10%

Calcium salts used as fertilizer is :

A

Calcium Carbide

B

Calcium Carbonate

C

Calcium Cyanide

D

Calcium Sulphate

Metallic soap (e.g. aluminium or calcium salts of fatty acids) can be used

A

As a lubricant

B

As a rust preventive

C

In hard water for cleaning of cloth

D

As a foam depressant in distillation column

What happens when too much fertilizer is used?

A

Local research teams provide recommendations

B

Algae in the water supplies begin to die

C

Animals and humans may become ill

D

Crops have no harmful detects.

Which of the following is also used as a Bio fertilizer?

A

Urea

B

Ammonia

C

Uric Acid

D

Nitrates

Extensively used nitrogenous fertilizer is

A

Ammonium nitrate

B

Urea

C

Ammonium sulphate

D

Nitro-lime

Where is the only organic fertilizer factory of Bangladesh situated?

A

Rangpur

B

Chuadanga

C

Bogra

D

Gazipur

What is the percentage of nitrogen in a 5-8-7 formula fertilizer?

A

5%

B

3%

C

7%

D

8%

Which of the following statements about fertilizer is true?

A

Powders are more popular than ever,

B

Solis are difficult to store

C

Liquids are increasing i popularity

D

Chemicals granules are difficult to apply.

Inorganic fertilizer means-

A

chemical fertilizer

B

compost fertilizer

C

bio-fertilizer

D

natural fertilizers

Calcium salts used as fertilizer is:

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