Devices that capture data directly from a source document include all of the following items EXCEPT __________.

A salt that contains water of crystallisation is:

The empirical formula, C₆H₁₂O₆, gives the simplest ratio as:

The following are all natural materials EXCEPT for:

The marked price of a bicycle was $260. A man bought the bicycle on hire-purchase by making a down payment of $100, and twelve monthly payments of $16 each. How much could he have saved if he had bought the bicycle for the marked price?

Which of the following routes taken by blood in the body is correct?

The introduction of machines in agriculture results in the unemployment or farm workers.

The type of unemployment these workers suffer is

Which of the following can cross the placenta from mother to fetus?

In humans, an egg cell is released from an ovary approximately every:

A rectangular tank is 100 cm long, 30 cm wide and 12 cm deep. The volume of liquid it will hold is

The average of a set of numbers reduces from 14 to 11 when the number 35 is removed. How many numbers were in the original set?

In the diagram, B is due north of A; C is east of B, and AB = BC.

Which one of the following statements about constructive interference is NOT true?

Different structures based on the same molecular formula are called:

The chemicals that make up the bodies of animals and plants are called:

The gas that relights a glowing splint is:

Which of the following transactions will NOT affect capital?

75 g of freshly dug soil was placed in an oven at 105 ℃ for 24 hours. It was allowed to cool, then reweighed. If the final mass of the dry soil was 66 g, what was the % water content of the original soil sample?

Which of the following are natural barriers to infection?
Ⅰ tears
Ⅱ skin
Ⅲ stomach acid
Ⅳ mucus

In electrolysis the anode is the: