1. Comenius crosswords
1: fuel produced from renewable resources
2: using waste materials to make new products
3: name of the town where the Earth Summit took place in 1992
4: title of the book by Rachel Carson published in 1962
5: present in limited quantities
6: involving the entire earth
7: principles of right conduct
8: process of working together
9: energy that is not gained from fossil fuels is …….
10: region of the upper atmosphere between 15 and 30 km
11: trading partnership based on respect for the polluters
12: name of the person who won the Nobel Prize in 2009 for her work on
sustainability of resouces used by a community
13: ecological community
14: producing electric current when exposed to light
15: well known NGO, whose name is based on a color
16: dense evergreen forest in tropical areas
17: fairness
18: a situation that profits all sides
19: new technology or metod

2. 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18 −
19

3. solution
1 b i o f u e l
2 r e c y c l i n g
3 r i o d e j a n e i r o
4 s i l e n t s p r i n g
5 r e s o u r c e
6 g l o b a l
7 e t h i c s
8 c o o p e r a t i o n
9 r e n e w a b l e
10 o z o n e l a y e r
11 f a i r t r a d e
12 e l i n o r o s t r o m
13 e c o s y s t e m
14 p h o t o v o l t a i c
15 g r e e n p e a c e
16 r a i n f o r e s t
17 e q u i t y
18 w i n − w i n
19 i n n o v a t i o n