Question : USB is ______ type of storage device.

Option 1: auxiliary

Option 2: primary

Option 3: secondary

Option 4: tertiary

Question : Production of a commodity mostly through the natural process is an activity of:

Option 1: primary sector

Option 2: secondary sector

Option 3: tertiary sector

Option 4: technology sector

Question : Which of these is a component of the tertiary sector of an economy?

Option 1: Mining and quarrying

Option 2: Water supply

Option 3: Electricity

Option 4: Hotels and restaurants

Question : Which one of the following is correctly matched?

Option 1: Secondary consumer - Grass

Option 2: Decomposer - Bacteria

Option 3: Producer - Deer

Option 4: Primary consumer - Leopard

Question : A mixture of 70 litres of wine and water contains 10% of water. How much water must be added to make the water $12 \frac{1}{2}\%$ of the resulting mixture?

Option 1: 5 litres

Option 2: 3 litres

Option 3: 2 litres

Option 4: 4 litres