(a(i))[3]
Calculate the mass of microplastics in the toothpaste used in one day in 2013 for these countries. Show your working and give suitable units with your answer.
(a(ii))[1]
State one recommendation for the proper care of teeth, other than regular brushing.
(b(i))[2]
Construct a food chain for these marine organisms.
(b(ii))[4]
Describe and explain why the researchers concluded that non-biodegradable microplastics are the most harmful to lugworms. Use the information in Table 3.1 in your answer.
(c(ii))[1]
State the name of the process that converts ammonium ions into nitrate ions.
(c(iii))[3]
Explain the effects of nitrate ion deficiency on plant growth.
(d)[5]
Discuss the effects of non-biodegradable plastics on terrestrial ecosystems.