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1.What have scientists done to a secret?
a) shared it
b) unlocked it
c) kept it
d) exposed it
2.For how long did people think koalas hugged trees to sleep?
a) 34 days
b) since 1812
c) decades
d) millennia
3.What have researchers cast on the koala's habits?
a) nets
b) seeds
c) doubt
d) new light
4.What is the difference in temperature between a tree trunk and the air?
a) hot and cold
b) 5 degrees
c) three fish
d) the mercury is rising
5.How much water can koalas save by hugging trees?
a) half
b) 2 litres
c) as much as they sweat
d) a few drops an hour
6.How many koalas did researchers look at?
a) 37
b) 36
c) 35
d) 34
7.How did the researcher feel about the conclusions of the research?
a) stunned
b) satisfied
c) shocked
d) surprised
8.Why did koalas move to different trees?
a) for food
b) because of ants
c) they were cooler
d) to get a change of scenery
9.How do trees get water?
a) absorb it from rain
b) photosynthesis
c) by osmosis
d) they suck it up from the ground
10.What could humans survive by using the koala's cooling technique?
a) 30-minute saunas
b) hotter summers
c) deforestation
d) a eucalyptus shortage
