1.1. The increasing human population is affecting farming and the habitats of animals.

Figure 1 shows the human population of the UK from 1960 to 2018.

Figure 1

Extend the line to estimate the human population of the UK in 2030 if this trend continues.

................................... million

1.2. Food security means that a population has enough safe and healthy food.

Which of these would improve food security?

1.3. A scientist tested three samples of different foods.

Figure 2 shows the results.

Figure 2

(i) Name the food group in sample E.

(1)

(ii) Name the food groups in sample F.

(1)

(iii) The emulsion test shows that food sample G contained fat. Describe how fat is digested in the body.

(2)

1.4. One crop commonly grown in Africa for biofuel production is Jatropha curcas.

It's a drought-resistant shrub whose seeds contain oil that can be processed into biodiesel.

Describe the advantages and disadvantages of growing this crop to produce biofuel.