SEAMO 2025 Conceptual Solutions

I am assembling the answer booklet for SEAMO 2025 and need clear, concise write-ups that spell out the key ideas behind every Science and English question. For each item you will supply a brief conceptual explanation that shows why the official answer is correct; full step-by-step workings or extra sample problems are not required. There are about thirty questions in each subject (I will share the exact paper as soon as we start). Please present your explanations in the same order, numbering them consistently and keeping each to a paragraph or two so they stay within a basic-overview depth. A neatly formatted Google Doc or Word file is perfect; if you prefer LaTeX, send the PDF plus source code. To confirm style and depth, I would like to see a quick sample on one Science and one English question before you continue with the full set. Once those are approved, you can complete the remaining explanations and hand in the final document for sign-off.