Choose all the answers that apply. Check the statements that are true. A hypothesis must be proven true in order for an experiment to be valid, electrons and protons are examples of cycles, a valid experiment must have results that can be repeated, observations are the final stage of an experiment, science is based on fact

observations are the final stage of a experiment science is based on fact.

science is based on a fact.

Explanation:These are true

in contrast, the biological controls are self-sustaining, inexpensive and very effective once established. biological control could be used on thousands of golf course acres, improving their biodiversity and quality as wildlife habitat. in the process, the golf industry will be shown to be leaders in an environmental stewardship program of benefit not only to the lands they manage but also to the watersheds in which they exist.

the hyksos invasion. the hyksos were able to attack egypt successfully because of their skills in using bronze weapons, composite bows and the use of the horse and chariot during the invasion. although the egyptians depict a barbarian-type overthrow, the truth is the seizure was likely a relatively peaceful one.