Answer the following questions. Type in no more than two words or/and a number. Text
1. When did scientists conclude that one million species are threatened with extinction?
2. Percentage of the largest declines that are in tropical areas?
3. Since what time the scientists recorded an average 6896 fall in more than 20,000
populations of mammals, birds, reptiles and fish?​

Elvirkavirka    2   28.01.2021 11:37    8