Ex.4.
necessities-предметы первой необходимост
liguid-жидкость, жидкий
habitable-обитаемый
terraforming-терраформирование
environment-окружающая среда
average- в среднем
greenhouse gases- парниковые газы
oxygen- кислород
lack-недостаток
release- выпускать
similar-аналогичный, подобный


Ex. 5.6. Now use words from ex. 4 in context. Choose one of the words to complete the sentences.

The ______________ life of a dog is ten years.
______________ is a chemical element.
The director will ______________ his film for Christmas.
The ______________ of money is not a sign of poverty.
Our star maps show no ______________ planets in that area of the galaxy.
______________ is the surroundings or conditions in which a person, animal, or plant lives.
I bought some new shoes which are very ______________ to a pair I had before.