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East and Southeast Asia — High School World Geography practice questions

10 multiple-choice questions on East and Southeast Asia, about 6% of the High School World Geography bank. Every one carries a written rationale.

Written and maintained by the CoStudy team · last updated 2026-09-29 · how we write and review questions

What this chapter covers

East and Southeast Asia is one of 16 chapters in CoStudy's High School World Geography bank, and it holds 10 of the bank's 170 multiple-choice questions — roughly 6% of the total. That proportion is not arbitrary: chapters follow the certifying body's published exam outline, and the number of questions in each is set by that domain's published weight, so the share of your practice time this chapter takes matches the share of the real exam it accounts for.

Studying by chapter is worth doing once you have a diagnostic score. A single overall percentage tells you whether you are close; it does not tell you which domain is dragging. Working a weak chapter in isolation, and re-testing it in isolation, is the fastest way to move a score that has stalled — and it is why the mock exams in CoStudy report by domain rather than as one number.

Free East and Southeast Asia practice questions

4 questions drawn from this chapter, with the full rationale shown — the controlling principle behind the right answer, and why each wrong option tempts and fails.

The world's most populous country as of 2026 is India, followed by:

  1. Indonesia
  2. The United States
  3. China
  4. Pakistan

Answer: C — China

China (~1.41B) sits at #2 after India (~1.43B) since ~2023. A common trap: outdated 'China #1' answer.

Japan's core industrial and population belt runs along:

  1. The Sea of Japan coast of Hokkaido
  2. The Pacific coast of Honshu from Tokyo to Osaka (Taiheiyō Belt)
  3. The southern coast of Kyushu only
  4. The mountainous interior

Answer: B — The Pacific coast of Honshu from Tokyo to Osaka (Taiheiyō Belt)

The Taiheiyō (Pacific) Belt from Tokyo through Nagoya to Osaka concentrates Japan's cities and industry. Japan's mountainous interior is thinly populated.

Which of these Southeast Asian countries is the world's largest Muslim-majority nation?

  1. Malaysia
  2. The Philippines
  3. Indonesia
  4. Thailand

Answer: C — Indonesia

Indonesia (~275M, ~87% Muslim) is the world's largest Muslim-majority country. Philippines is majority Catholic; Thailand is majority Buddhist.

Which archipelagic country in Southeast Asia is composed of over 7,000 islands?

  1. Indonesia (~17,000+)
  2. The Philippines (~7,000+)
  3. Malaysia
  4. Brunei

Answer: B — The Philippines (~7,000+)

The Philippines has ~7,641 islands. Indonesia (~17,500+) is even more archipelagic — an easy overshoot if you rely on 'most islands' shortcut.

Practise the full chapter

These are a sample. The full East and Southeast Asia chapter runs 10 items with per-chapter progress tracking, on the web and in the iOS app.

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