iGeo 2010, Мултимедиен тест — Задача 9. Question 9

iGeo 2010 · Multi Media Test

Внимание: Бележка към темата

The official answer sheet supplies letters only. The six movie-dependent questions retain original stills, icons and printed references; native movie files and soundtracks are unavailable in the original archive packet and have not been read. Historical source wording and official codes are retained without re-solving.

Условие

Question 9

Foraminifer are tiny animals that are important in the food chain. The shells of foraminifer in the Southern Ocean have reduced in weight by about 30% since pre-industrial times. What has caused this?

Complete native paired foraminifer micrographs, number1/2labels, both scale bars and entire black original frame.

A. changes in diet

B. sea level rise

C. evolution

D. ocean acidification

Отговори

Решение

Оригинал в Архива: 2010iGeo_MMT_question.pdf · официални решения: 2010iGeo_MMT_Answer.pdf