How many lines of symmetry does this shape have?

On January 1, a firm's capital is $4,600. On December 31, of the same year, the following information was provided: Drawings $850, Total Assets $10,000. Loan Outstanding $950 and Creditors $4,000. What was the Net Profit that year?

When a metal wire carries an electric current, charges flow through it.The moving charges are:

Who presides over the House of Assembly / House of Representatives?

In order to carry out photosynthesis, a plant needs:

The water authority charges $10.00 per month for the meter rent, $2.50 for the first 1 000 litres and $0.10 for each additional 100 litres. What is the total bill for 2 500 litres used in one month?

The number of litres in 2000 cm³ is:

Most plant and animal cells contain:

Which of the following is based on exploiting non-renewable natural resources?

Which of the following is NOT a way in which infectious diseases can be transmitted?

Which of the following methods of fishing is MOST damaging to the eco-system?

The number of kilos in 1 metric tonne is:

All of these elements form allotropes EXCEPT for:

A man's regular pay is $3 per hour up to 40 hours. Overtime is twice the payment for regular time. If he was paid $168, how many hours overtime did he work?

When potassium burns in chlorine, the material that is oxidised is called:

Which device has internal storage in the form of a buffer?

Enzymes catalyse specific reactions by having an active site where the substrate fits.This theory is called:

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

Dividing the mass in grams by the mass of 1 mole in grams gives:

How much simple interest is due on a loan of $120 for two years if the annual rate of interest is 5 ¹/₂ per cent?