Suggest two environmental conditions in the UK on 7th June 2017.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it