Activité Redigez un paragraphe qui discute l'affirmation suivante :
« Le Japon maitrise les risques de son territoire.
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Répondez aux questions suivantes.
1 Montrez que non seulement les aléas sont nombreux, mais qu'en plus que
la société est fortement exposée. (doc. 1.2 et 5)
2 Par quels moyens le Japon tente-t-il de limiter l'impact des catastrophes?
(doc. 3. 4 et 5)
3 Comment la gestion des risques entre-t-elle en conflit avec la gestion
des risques d'inondation et de glissement de terrain ? (doc, 2 et 5)​

Atsunami usually is the result of a. a nearby underwater earthquake. b. the winter monsoons. c. seismic activity in the eastern pacific ocean. d. hurricane-force winds.

Scientist: cross-sections of stalactites—calcite formations deposited on cave ceilings by seeping water—can reveal annual variations in rainfall in particular areas over hundreds and thousands of years. we often found that when—according to these cross-sections—drought occurred in a particular area, it coincided with the collapse of an ancient society in that area. i hypothesize that drought reduced agricultural productivity in these areas, thereby leaving these societies without the resources needed to handle internal stresses and external threats. which of the following, if true, would most weaken the support for the scientist's hypothesis? a. many droughts indicated in the cross-sections of stalactites do not correspond with the collapse of a society in that area. b. information from the cross-sections of stalactites alone cannot reveal the level of agricultural output in an area at a particular time. c. most of the societies that collapsed during droughts did so when internal power struggles coincided with military raids from neighboring societies. d. most of the societies that collapsed during droughts maintained large stockpiles of food and water at the time of their collapse. e. information from stalactites also suggests that the collapse of some societies coincided with periods of abnormally high rainfall.

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water