Questions

The law of conservation of mass states that in any closed system the mass of the system is neither created nor destroyed over time i.e, the mass cannot be changed overtime.

Hence, the given statement is true.

The Capital city of Ethiopia is Addis Ababa.

Countries and Capital cities ::

Angola  -  Launda

Burundi  -  Bujumbura

Chile  -  Santiago

In Germany, Kaiser means 'Emperor'. On 18th January, 1871 Wilhelm I was declared as Kaiser of Germany.

Plant cell walls are mostly made up of the molecule cellulose. Cellulose is a polysaccharide, a complex sugar made of long chains of glucose.

The cell wall must be made of thick and strong material as it provides the structural shape of the plant and protection from insects and microorganisms.

A tenant farmer is one who resides on land owned by a landlord. These farmers would have to share the yield with the landowner in a process known as sharecropping. In the South, these farmers need to have their own tools and animals.

The glycemic index or glycaemic index is a number associated with the carbohydrates in a particular type of food that indicates the effect of these carbohydrates on a person's blood glucose (also called blood sugar) level. A value of 100 represents the standard, an equivalent amount of pure glucose.

The GI represents the rise in a person's blood sugar level two hours after consumption of the food.

The nutrient which provides the maximum energy is Fat. It provides the energy of 9 calories/gram.