From the fragment of Text II “Explaining the ‘triple carbon impact’ of Amazonian oil extraction, the report says that copious amount of carbon is emitted when the rainforest is cut down to establish drill sites” (lines 25-28), the word report refers to 
From the 9th paragraph of Text II (lines 68-76), one can conclude that in recent overall figures, the US import of crude oil 
The main objective of Text I is to 
By the fragment of Text I “By 1985, the U.S. was 25 percent more energy efficient and 32 percent more oil efficient than in 1973. Of course the U.S. was upstaged by the Japanese who in the same period improved their energy efficiency by 31 percent and their oil efficiency by 51 percent” (lines 52-57), one can infer that 
In the sentence of Text I “Today the importance of oil to the economy is still diminishing” (lines 57-58), the verb form is diminishing indicates 
The fragment of Text I “Despite the 51 percent growth in the American economy between 1990 and 2004, carbon emissions only increased 19% suggesting that those who insist that economic growth and carbon dioxide emissions move in tandem are wrong” (lines 58-63) implies that 
Thus, in the fragment of Text I “Thus some of the primary rainforests must be salvaged for sustainable development to be at all successful” (lines 107-109) conveys an idea of 
Text I refers to “conflicting claims to land” (line 96). In Text II there is an illustration to one of those claims.
It refers to
In the fragment of Text I “The simplest and most reliable way to mitigate damage from oil operations would be to prohibit oil extraction in the tropical rainforest” (lines 18-20), the word mitigate can be replaced, with no change in meaning, by 
In the fragment of Text I “In arriving at a solution many issues must be addressed, including the resolution of conflicting claims to land considered to be in the public domain” (lines 94-97) the terms issues, addressed, claims correspond to the following meanings: 