Correct Answer: A. human wants are insatiable

Correct Answer: A. expose the leaves to sunlight

Correct Answer: A. apostrophe

Correct Answer: A. cigarettes

Explanation

(a) (i) Element Y

(ii) Element Y

(iii) Element Y

(b) The element Y is in group VII and so it has a smaller atomic volume than element X which is in group

I. This size of the atom is a measure of the atomic radius. The smaller the atom is, the more is the attractive force between the outermost electron and the nucleus and this is the reason why element Y will be a better acceptor of electron than X as oxidizing agent.

Correct Answer: B. sheep

Correct Answer: D. The Na⁺/K⁺ pump releasing 3 sodium ions outside of the cell and 2 potassium ions into the cell

Explanation

Among the given options, the types of transport that require ATP is: The Na+/K+ pump releasing 3 sodium ions outside of the cell and 2 potassium ions into the cell: The Na+/K+ pump is an example of active transport that requires ATP. It transports ions against their concentration gradients, moving sodium ions out of the cell and potassium ions into the cell. The remaining options do not involve ATP-dependent processes: -Glucose moving into the cell, down its concentration gradient, through a channel: This type of transport does not require ATP. It is a form of passive transport called facilitated diffusion, where glucose molecules move down their concentration gradient with the assistance of transport proteins. - Sodium ions moving from an area of high concentration to an area of low concentration through a voltage-gated sodium channel: This is an example of passive transport known as facilitated diffusion. The voltage-gated sodium channel allows the movement of sodium ions down their concentration gradient without the requirement of ATP. - Water moving from an area of low solute concentration to an area of high solute concentration: This process is called osmosis and does not directly involve ATP. Osmosis is the passive movement of water molecules across a semipermeable membrane in response to differences in solute concentrations. - Water moving down its concentration gradient through an aquaporin: Aquaporins are specialized water channels that facilitate the passive movement of water across cell membranes. This process, like osmosis, does not require ATP.

Correct Answer: A. myth

Explanation

(a) Trade between Nigeria and United Kingdom and that between Nigeria and Japan.

Similarities:

(i) There is importation of finished products from both countries

(ii) There is export of primary products to both countries

(iii) There is importation of skilled labour from both countries

(iv) There is importation of technology from both countries.

Differences:

(i) There is older trade relationship with U.K than Japan

(ii) There is greater volume of trade with the U.K

(iii) Exportation of crude oil to Japan and none to U.K

(iv) Importation of finished goods to Nigeria from Japan than U.K

Correct Answer: D. 351