The wall of the heart is made of:

In a food chain a plant is a producer because it produces:

Which of the following may result if many people do what the young man in the picture is doing?

1. The rapid growth of cities
2. The growth of shanty towns and squatter settlements
3. The brain drain experienced by many developing countries
4. Inadequate housing, educational and health facilities in urban areas

When solid carbon dioxide turns straight into a gas we call it:

Many leaves are adapted to photosynthesise effectively by having:

In a water condenser the cooling water enters at:

The number 32747 written to 4 significant figures is

The water authority charges $20.00 per month for the meter rent, $2.00 for the first 1 000 litres and $0.20 for each additional 100 litres. What is the total bill for 2400 litres used in one month?

The ABC Company deposited a Cheque received from Mr. Murray for $300.00. How must this transaction be recorded in ABC′s book?

1. Credit the Cash Book $300
2. Credit Murray′s Account
3. Debit the Bank Account
4. Debit the Cash Account

Water passes out of leaves through the:

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

The shaded area in the Venn diagram above represents

The area of the trapezium ABCD above is

2p² -15p + 25 =

Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.

As the teacher continued his lesson, John began to lose all interest, imagining himself laying on his bed relaxing.

When zinc sulphide is heated in air the gas produced is:

After Lloyd's father died, Lloyd invited his mother to live with his wife, his two sons and himself. The new family structure would be termed.

When testing a leaf for the presence of starch, the correct sequence of procedures is:

In the equation, carbon monoxide + oxygen → carbon dioxide, a reactant is:

To make fertilisers and explosives we need: