Decide if the "personal a" is necessary in the following sentence. Tengo dos amigos. The "personal a" is necessary. The "personal a" is not necessary.

Give the brainliestwhich parts of the scientific process differentiate it from pseudoscience? check all that apply. stating facts based on opinionsusing models and experimentsasking new questionsmaking subjective claimshaving explanations that answer all questionsi need more than one answer