“environmental impact assessment” means an evaluation of a project to determine its impact on the environment and human health and to set out the required environmental monitoring and management procedures and plans; “environmental impact assessment report” means a report on an environmental impact assessment that is referred to in section one hundred; “fixed date” means the date fixed in terms of subsection (2) of section one as the date on which this Act shall come into operation4; “government agency” means any Ministry, department, organ or agency of the State or government, including a local authority; “hazardous substance” means any substance, whether solid, liquid, or gaseous, or any organism which is injurious to human health or the environment; “hazardous waste” means waste which is poisonous, corrosive, noxious, explosive, inflammable, radioactive, toxic or harmful to the environment; “inspector” means an inspector appointed in terms of section thirty-five; “invasive alien species” means, generally, exotic plants which have become naturalised and threaten the existence of indigenous species by penetrating and replacing indigenous vegetation, and, in particular, shall have the meaning given to that term in section one hundred and eighteen; “licensing authority” means any person on whom power is conferred under any enactment to issue a licence in respect of any activity required under that enactment to be done or carried out with a licence; “manage”, in relation to the environment, means to manage with a view to securing its protection, conservation, regulations, rehabilitation or sustainable use, or any combination or all of the foregoing; “Minister” means the Minister of Environment and Tourism or any other Minister to whom the President may, from time to time, assign the administration of this Act; “monitor” means to assess, continuously or periodically, the state and trends of developments on any part of the environment as well as the actual or potential impact of any activity on the environment and human health; “National Plan” means a National Environmental Plan prepared in terms of Part X; “natural resource” includes— (a) the air, soil, waters and minerals of Zimbabwe; (b) the mammal, bird, fish and other animal life of Zimbabwe; (c) the trees, grasses and other vegetation of Zimbabwe; (d) the springs, vleis, sponges, reed-beds, marshes, swamps and public streams of Zimbabwe; (e) any other thing that the President may, by notice in a statutory instrument, declare to be a natural resource, including a landscape or scenery which, in his opinion, should be preserved on account of its aesthetic appeal or scenic value; 4 17th March, 2003, except for section 144 (repeal of three Acts) and paragraph 1 of Part III (reference to repeal of section 69 of Water Act). See Statutory Instrument 103 of 2003 dated 14 March, 2003. The date for the excepted provisions has been fixed as 7th April, 2006, by Statutory Instrument 74 of 2006. 9