Which of the following substances contains the elements carbon, hydrogen, oxygen and
nitrogen?
Ⅰ DNA
Ⅱ carbohydrates
Ⅲ lipids
Ⅳ proteins
The lowest and the highest frequencies a typical young person′s ear can detect are approximately:
If a flask containing marble and acid is placed on a balance, the mass decreases steadily with time, which means that:
Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.
Had they not been forewarned, they might have joined the queue, not knowing that gas was not on sale at that station.
Which one of the following statements about a voltmeter is NOT true?
Choose the ONE underlined part A, B or C that is inappropriate. If the sentence is acceptable as it stands, choose D.
The biased reporter is concerned not so much with the truth of what he writes, as with its credibility.
The wall of the left ventricle is thicker than that of the right ventricle because:
The diagram above shows the graphs of
3x - y = 1 and 5x + 2y = 20 .
Which ordered pair (x, y) satisfies both
equations?
A lens forms a real image of magnification ×3.Which one of the following statements is NOT true?
The Earth′s first atmosphere contained all of these gases EXCEPT for:
When a trial balance does NOT agree, the difference is placed in a
Which of the relations represented below
are functions?
Instructions: Choose from the four suggested answers the word which is closest to OPPOSITE in meaning to the underlined word.
She seems to be sensitive to the feelings of others.
Instructions: Select the option A, B, C or D that BEST describe the sentence.
The politician hammered the nail of his argument into the leafy minds of his audience who had come to hear him speak on the difficult subject of monetary policy.
1 mole of sodium carbonate weighs 106 g, so the number of moles in 318 g will be:
The two common varieties of chlorine atoms are called:
Which of the following may result if many people do what the young man in the picture is doing?
1. The rapid growth of cities
2. The growth of shanty towns and squatter settlements
3. The brain drain experienced by many developing countries
4. Inadequate housing, educational and health facilities in urban areas
Which one of the following taxonomic groups contains the greatest number of organisms?
The exterior angles and the interior angles of a polygon are equal. How many sides does the polygon have?
In electrolysis the anode is the:
