All of the following can affect the size of a population EXCEPT for:

Which of the following is a prime number?

Banks and other financial institutions utilize __________ technology that automatically verifies the identity of callers wishing to access their accounts.

Iron chloride can be prepared from the reaction of iron and:

One Faraday represents:

The major plant nutrients written as NPK refer to phosphorus, nitrogen and:

If a reaction takes 50 seconds at 25 ℃, then at 50 ℃ the time for the reaction in seconds is likely to be about:

Photosynthesis is important because:

Acid soils can be neutralised by adding:

A store charges 6% VAT on all sales. What is the total cost of a shirt marked at $30 ?

Which of the following would play an important part in a government′s efforts to increase consumption of locally produced food?

Which one of the following comparisons of inhaled and exhaled air is correct?

Which of the following transactions will NOT affect capital?

Which of the following devices are MOST LIKELY to be used at an airport for border control activities?

Given that a and b are integers, which of the following is not necessarily an integer?

An insoluble metal oxide can be described as:

The second most common gas in the atmosphere is:

Eight bits are called a __________.

__________ is a type of chip from which data can be erased by exposure to ultraviolet light.

The perimeter of a rectangle is 26 cm. The rectangle is converted to a square by tripling the width and taking a quarter of the length. What is the perimeter of the resulting square?