Linangan Series 2024 - Earth Science (Day 2)

True or False. The earth's crust is stationary; otherwise, earthquakes would happen everyday.

• True

• False

True or False. According to the continental drift hypothesis, the landmasses we see today came from a supercontinent that broke up, and the fragments drifted away from each other over millions of years.

• True

• False

Why is the continental jigsaw puzzle evidence not reliable?

• I. Shorelines are modified by waves.

• II. Coastlines undergo deposition.

• Both statements I and II are correct.

• Both statements I and II are incorrect.

Which of the following biological evidence does not support the continental drift theory?

• I. Some species of fishes are found in the waters surrounding both Africa and South America.

• II. Some fossilized remains exhumed from the mountains of Africa were similar to fossils recovered in South America.

• Both statements I and II are correct.

• Both statements I and II are incorrect.

An opponent of the continental drift theory would most likely use which of the following mechanisms as an alternative explanation?

• I. The existence of isthmus links that are currently submerged underwater

• II. Migration through island stepping stones

• Both statements I and II are correct.

• Both statements I and II are incorrect.

If a supercontinent once existed, which of the following should we not expect regarding the rock types and geological features currently found in different continents?

• I. Mountain belts that terminate in one coastline must re-emerge in another coastline.

• II. 2.2-billion-year-old igneous rocks present in Africa must also be present in Brazil.

• Both statements I and II are correct.

• Both statements I and II are incorrect.

Which of the following is paleoclimatic evidence for the supercontinent?

• I. Evidence for a glacial period that dated to the late Paleozoic had been discovered in Southern Africa, South America, Australia, and India.

• II. Large tropical swamps existed in several locations in the Northern Hemisphere during the late Paleozoic.

• Both statements I and II are correct.

• Both statements I and II are incorrect.

True or False. The continental drift theory is more encompassing the plate tectonic theory.

• True

• False

Which of the following is not an evidence of the plate tectonic theory?

• I. Thickening of sediment accumulations in the deep-ocean basins

• II. Earthquakes at deep-ocean trenches

• Both statements I and II are correct.

• Both statements I and II are incorrect.

Which of the following is thicker?

• Oceanic lithosphere

• Continental lithosphere