Questions

Saw dust contains carbon which is oxidised to carbon  dioxide by concentrated nitric acid;

Add together values in corresponding positions of the top two crosses, and put the result in the lower left cross.

Calculate the difference between values in corresponding positions of the top two crosses, and put the result in the lower right cross.

Finally add together the values in corresponding positions of the lower two crosses to give the values in the central cross

The one word substitute for 'a drawing on transparent paper' is Transparency.

As per the latest updates, India is :

• Largest producer of milk.

• Largest producer of millets in the world.

• Largest producer of jute.

• Largest producer of ginger.

• Largest producer of bananas.

• Largest producer of castor oil seeds.

• Largest producer of mangoes.

• Largest producer of safflower oil seeds.

• Largest producer of papayas.

• Largest producer of cottonseed (As per International Cotton Advisory Committee (ICAC) report for the month of March 2017)

• Second largest producer of tea, the first position being held by China.

• Second largest producer of sugarcane, the first position being held by Brazil.

• Second largest producer of wheat, the first position being held by China.

• Second largest producer of onions, the first position being held by China.

• Second largest producer of potatoes, the first position being held by China.

• Second largest producer of garlic, the first position being held by China.

• Second largest producer of rice, the first position being held by China.

• Second largest producer of cement., next to China.

• Second largest producer of silk, the first position being held by China.