Употребите верный предлог, если нужно и заполните пропуски 1 Many heavy

Употребите верный предлог, если нужно и заполните пропуски
1 Many heavy metals are toxic (to, for, at) animals and plants
2 The government has to impose stricter controls ___ the emissions and bring in tough legislation to deal ___ the problem.
3 Carbon monoxide, which is mostly produced ____ motor vehicles can, even __ small doses, cause sickness and a slowing ___ the reflexes.
4 The Principle of Sustainable Development is included ___ the Amsterdam Treaty of the European Union
5 The increased amount __ carbon dioxide __ the atmosphere is making it warmer.