At 20 ℃ all of the halogens are:

Which of the following are all deficiency diseases?

Nitrogen fixation produces:

Which one of the following is NOT a harmful effect of smoking?

All of these are properties of carbon monoxide 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?

Which one of the following is a biological component of a pond ecosystem?

When two solutions are mixed and give a solid product we call it:

In the Trading Account Returns Outwards is deducted from

THE ITEM refer to the following dialogue.

Sita: When Marvin was group leader he was always ordering us about.

Paul: Me, I prefer a group leader who allows members to do as they please.

The leadership style of Marvin as described in the dialogue above is.

Which of the following conditions is NOT caused by a poor diet?

In a school of 910 pupils, ³/₇ are boys and ²/₅ of the boys wear glasses. How many boys wear glasses?

Which of the following is the MAIN reason for conflict in trade sometimes arising between CARICOM countries?

To remove limescale from a tap you need:

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

Which of the following statements about aerobic respiration is correct?

Candied fruits are preserved in a strong solution of:

$x is divided among three boys, Ryan, Keith and Andrew, in the ratio 2 : 3 : 7, respectively. If Andrew gets $15 more than Keith, what is the value of x ?

Which of the following BEST explains why birth rates have been falling in some Caribbean countries?

Sweating can help to cool the body. This cooling is achieved mainly by: