Question

And the greenhouse effect far infrared radiation is blank Earth's surface and absorbed and remitted by blank gases in the atmosphere these gases have blank and concentration over the past century
Emitted and absorbed by admitted from absorbed by all some been unchanged decreased increased

Answer 1

And the greenhouse effect far infrared radiation is **emitted from** Earth's surface and absorbed and remitted by **greenhouse** gases in the atmosphere. These gases have **increased** in concentration over the past century.