The cubic expansivity of a certain gas at constant pressure is \(\frac{1}{273} k^{-1}\). If a given mass of the gas is held at constant pressure and its volume at 0^oC is 273m³, determine the volume of the gas at 273^oC.

• A. 273m³
• B. 546m³
• C. 819³
• D. 1092³

The following symbols are used in flowcharting except the?

• A. terminal symbol.
• B. process symbol.
• C. input/output symbol.
• D. close symbol.

Calculate the probability that the product of two numbers selected at random with replacement from the set {-5,-2,4, 8} is positive

• A. \(\frac{2}{3}\)
• B. \(\frac{1}{2}\)
• C. \(\frac{1}{3}\)
• D. \(\frac{1}{6}\)

(a) Two pupils are chosen at random from a group of 4 boys and 5 girls. Find the probability that the two pupils chosen would be boys.

(b) Twenty percent of the total production of transistors produced by a machine are below standard. If a random sample of 6 transistors produced by the machine is taken, what is the probability of getting (i) exactly 2 standard transistors (ii) exactly 1 standard transistor (iii) at least 2 standard transistors (iv) at most 2 standard transistors?

(a) Draw a well labelled diagram of the water cycle

(b) Mention two deficiency symptoms of phosphorus in crops

(c) Using the table below, classify the follow-ing insect-pests according to their modes of feeding (i) weevil (ii) locust (iii) scale insect (iv) armyworm (v) earworm (vi) cotton stainer (vii) green spidermites (viii) thrips (ix) capsids (x) yam beetle

According to Jeremiah, the anger of God toward standing on the right side of the altar of incense, he

• A. cried out to him
• B. was troubled and afraid
• C. rejoiced in the Lord
• D. left the Temple immediately

The table below shows the number of some organisms in habitats W and Y. Study it to answer the question below;

Which of the following statements about habitat W is correct? The

• A. absence of lions and antelopes shows that the habitat is terrestrial
• B. presence of Tilapia and planktons shows that the habitat is not aquatic
• C. type of organisms present indicate that habitat is aquatic
• D. absence of grasses indicates that the habitat is terrestrial

Evaluate 64.7642 - 35.2362 correct to 3 significant figures

• A. 2960
• B. 2950
• C. 2860
• D. 2850

The smallest living organism which share the characteristics of both living and non-living matter are

• A. bacteria
• B. fungi
• C. viruses
• D. protozoa

The coefficient of price elasticity of demand is zero when demand is

• A. Fairly elastic
• B. Perfectly inelastic
• C. Fairly inelastic
• D. Unitary elastic