The sharp-tasting compound in vinegar 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?

Anaerobic respiration takes place:

The rate of reaction between marble and hydrochloric acid can be speeded up by using:

Profits in the partnership of Bess, Bill and Bob are shared in the ratio 1 : 2 : 3. If Bill's share of the profits is $300, what is Bob's share?

Which one of the following is correct. When we digest our food:

All of these are fractions from crude oil EXCEPT for:

Which of the following are examples of institutions?

1. Bank
2. School
3. Church
4. Government

__________ are used in specialized fields such as engineering and drafting for outputting large-format drawings.

Overfishing means:

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

A liquid compound that conducts electricity is:

The number of electrons shared in a single covalent bond is:

The air temperature on a particular day is 27 ℃. An air bubble trapped in a tube by a thread of liquid is able to expand freely if it is heated.At what temperature would you expect the volume of the air bubble to double?

Raising the temperature of a reversible reaction always encourages the:

A spring is 100 mm long when unstretched. A 40 N load is hung from it, and its total length increases to 120 mm. A different load on the spring causes it to become 150 mm long. If the spring obeys Hooke′s Law, this second load is:

Most plant and animal cells contain:

John Smith is employed at $8 per hour, he is paid time and a half for hours of work excess Of 44 hours per week. Last week worked for 50 hours. His gross earnings were

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

There is hardly a point to our knocking as no one is not at home.

Which one of the following is the best way to measure growth of an organism?