The Statement would be true stated by the definition
Since it takes about 7-9 months for a baby to come out it would be 7-9 months
If there were less greenhouse gases, much of the infrared radiation that is converted to heat today would not be trapped in the earth's atmosphere. The earth's temperature would cool, and a new Ice Age would occur. Many plants and animals could not survive in this new condition, oceans would freeze, and weather patterns would change.
Hope that helped