Ajuda com o dever de casa de geografia

19) Cite 5 critérios que podem ser utilizados para separação de subáreas homogêneas para o plano de amostragem aleatória de solo. (1,0) 29) Com segurança qual o númerc mínimo de amostras simples de solo para compor uma amostra composta Qual ou quais as profundidades deveriam ser amostradas para a implantação da: lima ácida Tahiti, em covas; e alface, em canteiros? Justifique. (1,5) 39) Qual a origem da acidez dos solos?Explique. (1,0) 49) A calageme a gessagem apresentam o mesmo efeito no solo? Qual a contribuição da calagem em e gessagem para os solos? Cite separadamente para cada prática. (2,0)

T. Ethiopia is a land locked country. 2. Ethiopia contains about 0.7% of the world's land area 3. The North central massif are separated from the plateau of Tigray by the Abbay River. 4. The Afar Triangle is the largest and widest part of the Rift Valley system. 5. Cenozoic era is the most recent geological era. ch item in column "B" with correct statement in column "A" B Sub-tropical A. Dega Alpine B. Kola Desert C. Bereha Temperate D. Wurch . Tropical E. Woina-Dega oose the correct answer from the following alternatives 1. Which one of the following is different from the other? A. Cultural geography C. Urban geography B. Economic geography D. Oceanography The side of the mountain facing the wind laden with moisture is called A. Wind ward B. Lee ward C. Rain shadow D. None Which neighboring country shares the longest boundary line with Ethiopia? A. Exitrea B. Sudan C. Djibouti D. Somali Is the degree of measurement of hotness or coldness of an object A. Precipitation C. Humidity 3. Temperature D. Air pressure The difference in elevation between the highest and the lowest in Ethiopia is 4136ms a.m.s.l C. 4000ms a.m.s. 3 4504msa.m.s.1 D. 3721ms a.m.s. Which one of the following is not true about Precambrian era? A. It covered the time before 600 million years 5. It is the oldest as well as the longest era in the earth history It covers 5/6 of the earth's geological time D. An era of sedimentary rock formation in Ethiopia

Which event occurs after erosion of Earth's surface? Surface material breaks down into smaller pieces. Very dense particles settle faster than low-density particles. Large particles are carried away to a new location by ice and glaciers. Round particles form new landforms more slowly than flat particles do.

Which event occurs after erosion of Earth's surface? Surface material breaks down into smaller pleces. Very dense particles settle faster than lowdensity particles. Large particles are carried away to a new location by ice and glaciers. Round particles form new landforms more slowly than fat particles do.

Which factors can lead to a mass movement?Check all that apply. steep slopes D removal of vegetation deposition animal activity earthquakes undercutting of a slope