When evolution was first proposed, wich of the following was used as evidence to support the idea.
A.**observations of nature**
B. Laboratory experiments
C.extensive fossil collections
D. genetic sequences
agree
When evolution was first proposed, observations of nature, particularly the diversity and variation of species, were used as evidence to support the idea. This includes observations of different habitats, geographical distribution of species, and adaptations to different ecological niches. Scientists observed that species were well-suited to their environments, suggesting that they had evolved and adapted to their surroundings over time.
It's worth noting that the other options, laboratory experiments, extensive fossil collections, and genetic sequences, have also become important pieces of evidence supporting evolution but were not initially available or well-developed when the theory was first proposed by Charles Darwin.