Which statement explains why greenhouse gases are needed for the survival of life on earth?

The statement that best explains why greenhouse gases are needed for the survival of life on earth is : without greenhouse gases, earth would be too cold for life to exist
Greenhouse gases (on moderate amount) will promote plant growth that will support the living organisms on earth

hope this helps

The greenhouse effect is important, because it contributes to the survival of life on Earth. Without the greenhouse effect, the temperature of the planet would be similar to conditions experienced on the moon. On the lunar surface, with no atmosphere to mediate temperature .

1. true.2. true.3. true.4. false.5. true.the concept of darwin's theory of evolution involves the idea that there are limited resources in a given living environment and that the organisms which live within have variations in their genetic make up due to random mating. the ones with beneficial genetic variations can express certain traits which give them an upper hand in surviving and reproducing in the said environment compared to ones who may have a more disadvantageous variation in traits. over time, the organisms with an upper hand will survive and reproduce more frequently and pass on their beneficial genes while the others die. the result is evolution, where we observe (usually, but not always) eventually, phenotypic distinct changes.