When evolution was first proposed, which of the following was used as evidence to support the idea? 1.observations of nature 2.laboratory experiments 3.extensive fossil collections 4.genetic sequences

Option 1, observations of nature

Explanation:

History states that the first writing related to evolution could be found in the Greek sculpture. Two scholar Anaximander and Empedocles during Greek age proposed that organisms transformed from one form to another. This theory was based on the observations in the nature. The first evolutionary study based on fossil was conducted by Darwin and the first experiment based evolutionary study was conduction by Gregor Mendel in lab.

Hence the option  1 , is correct as the first study on evolution was based on natural observation.

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.