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

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

The equation of the line which passes through the point (0, 2) and has a gradient of ¹/₃ is

Instruction: Choose from the four options the word or pair of words which BEST completes the meaning of the sentence.

While the committee members ............ insults across the floor, the chairman tried in vain to ............ order.

All of the following have endoskeletons EXCEPT for:

In the reactivity series of metals the order is: sodium, calcium, magnesium, aluminium, which means that the most reactive metal is:

To complete the reaction: acid + carbonate → salt + carbon dioxide + ?, we must add the word:

Asexual reproduction produces:

Which of the following statements about anaerobic respiration is true?

A and B had a partnership and shared profits and losses 2/3 and 1/3 respectively. They admitted C to the partnership. In addition to capital, C had to pay goodwill $3,600. How much did A and B receive as their respective share of Goodwill?

Which of the following are examples of environmental variation in humans?
Ⅰ hair colour
Ⅱ height
Ⅲ intelligence
Ⅳ body mass

Which of one the following statements about phloem cells is NOT true?

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

The mean of ten numbers is 58. If one of the numbers is 40, what is the mean of the other nine?

The following statements describe an ordinary mercury-in-glass laboratory thermometer. Which one of them is NOT true?

Globalization is characterized by all of the following EXCEPT the

During adolescence, boys:

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

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

All of these are compounds EXCEPT for: