(a)[2]
State two additional requirements that plants need in order to carry out photosynthesis.
(b)[2]
Calculate the percentage loss of forested area in Nigeria between 2000 and 2005. Show your working and give your answer rounded to the nearest whole number.
(c(i))[3]
Describe and explain how a lower concentration of water vapour in the air would increase the movement of water through crop plants.
(c(ii))[3]
Describe how water travels from the soil into the roots of crop plants.
(d)[4]
Describe the effects of deforestation on the animals that live in forests.