Lake Lama is a large freshwater lake in the Krasnoyarsk territory, in the South of the Taimyr peninsula, of tectonic origin.
The length of the lake is 80 kilometers, the maximum width is 14, the area is 318 sq. km. the Lake is very deep (over 300 meters, in some places, perhaps up to 600 meters), clean water and its low temperature. On the shores of the lake there are mountains with a height of 400-600 meters or more.
The name of the lake comes from the tungus-manchu word "laamu" - sea, ocean or evenk "lamu" - sea, big water.
1)does this list include
2)is rising/will have
3)have wasted
4)has been poisoning
5)is piling
6)уточните написание слов, эта фраза - абсурд. возможно, не we, а другое слово? the? тогда did the disaster happen.
7)have cleared
8)what did the picknickers do/ when it began raining
9)have been destroying
10)were staying
Вообще, текст содержит некоторые грамматические неоднозначности, к тому же предложения звучат неестественно. Судя по всему, источник - отечественного происхождения, а не аутентичный англофонный. (Претензия не к вам, а к автору сего опуса^^)