What is the name of the process by which ammonia is produced on an industrial scale?

• A. Nitrogenation
• B. Ammoniation
• C. Nitrification
• D. Haber process

A thin wire with heavy weights attached to both ends is hung over a block of ice resting on two supports. If the wire cuts through the ice block while the block remains solid behind the wire, the process is called

• A. condensation
• B. sublimation
• C. regelation
• D. fusion

Multiply 101₂ by 11₂

• A. 1001₂
• B. 1011₂
• C. 1110₂
• D. 1111₂

Which of the following reduces the activation energy of a chemical reaction?

• A) freezing mixture
• B) reducing agent
• C) water
• D) catalyst

The demand for a product is said to be price inelastic if?

• A. the price elasticity of demand is less than one
• B. the price elasticity of demand is greater than one
• C. a reduction in price results in increase in the quantity demanded
• D. an increase in price results in a decrease in the quantity demanded

Plants tend to prevent overcrowding by means of efficient

• A. water uptake
• B. seed germination
• C. pollination
• D. seed dispersal

The revelation of the glorious Quran started with a

• A. parable
• B. command Iqrah Read In a commanding tone by the Angel Jibril (Q :). Ref: Q 96:1
• C. legislation
• D. declaration

A business outfit is said to be a public limited company when it

• A. is owned by the government
• B. operates as a public corporations
• C. is run by the public
• D. sells its shares to members of the public

A feature of supermarkets which distinguishes it from other large scale retail outlets is that items sold are?

• A. mainly household goods
• B. mainly industrial goods
• C. delivered by post
• D. one line of products

When digging for clams, their primary food, sea otters damage the roots of eelgrass plants growing on the seafloor. Near Vancouver Island in Canada, the otter population is large and well established, yet the eelgrass meadows are healthier than those found elsewhere off Canada’s coast. To explain this, conservation scientist Erin Foster and colleagues compared the Vancouver Island meadows to meadows where otters are absent or were reintroduced only recently. Finding that the Vancouver Island meadows have a more diverse gene pool than the others do, Foster hypothesized that damage to eelgrass roots increases the plant’s rate of sexual reproduction; this, in turn, boosts genetic diversity, which benefits the meadow’s health overall. Which finding, if true, would most directly undermine Foster’s hypothesis?

• A) At some sites in the study, eelgrass meadows are found near otter populations that are small and have only recently been reintroduced. B) At several sites not included in the study, there are large, well-established sea otter populations but no eelgrass meadows. C) At several sites not included in the study, eelgrass meadows
• A) At some sites in the study, eelgrass meadows are found near otter populations that are small and have only recently been reintroduced. B) At several sites not included in the study, there are large, well-established sea otter populations but no eelgrass meadows.
• C) At several sites not included in the study, eelgrass meadows
• D) At some sites in the study, the health of plants unrelated to eelgrass correlates negatively with the length of residence and size of otter populations.