Weird world of plants A quiz on plants 1) In summer we feel cool on the streets when the streets 1) In summer we feel cool on the streets when the streets are lines with trees. Three trees can do the job of _____ are lines with trees. Three trees can do the job of _____ air-conditioners running all day.air-conditioners running all day. A 5 B 15 A 5 B 15 2) Plants can absorb CO2, and release 2) Plants can absorb CO2, and release O2. A man every day breathes in ___ O2, and breathes O2. A man every day breathes in ___ O2, and breathes out _____ CO2.out _____ CO2.A 750g/1000g B 1000g/750g A 750g/1000g B 1000g/750g (B)(B)(A)(A) 3) 1.5hectares of trees could produce enough oxygen to keep _____ alive and healthy for a year. A 24 B 48 4) Smell of some flowers and plants can drive off insects. 4) Smell of some flowers and plants can drive off insects. The smell of cucumbers can drive off _____.The smell of cucumbers can drive off _____.The smell of onions and tomatoes can drive off___. The smell of onions and tomatoes can drive off___. The smell of jasmine flowers can drive off___.The smell of jasmine flowers can drive off___. A flies B cockroaches C mosquitoes A flies B cockroaches C mosquitoes (B)(B)(A)(A)(C)(C)(B)(B) 5) When we touch the leaves of mimosas5) When we touch the leaves of mimosas(( 含羞草含羞草 )) ，， their leaves will shut. If their letheir leaves will shut. If their leaves shut quickly, it means the weather waves shut quickly, it means the weather will be _____.ill be _____. A rainy B sunnyA rainy B sunny(B)(B) Venus Fly-TrapVenus Fly-TrapDead Horse Dead Horse Arum Arum Acacia treeAcacia tree1.1.2.2.3.3. LichenLichenBristlecone PineBristlecone PineGiant Giant Redwo...
