Google allows it but make sure that you be within adsense terms of service.

i have seen many sites with adsense and other affiliate natwork ads.

never put adsense ad code with and adult ads

Yes, it's allowed.

Yes in all my micro niche blogs i have amazon and adsense

yaa ,sure google allow this

Perhaps it's best to ask, "Do you want to?"

IMHO, every monetized page should be crisp and clear and with an 'clear' call to action. If you want your reader to be drawn to an Amazon product, then AdSense might distract them.

Too many choices can be confusing to your reader.

i am in phase of trying and combinating for now...thanx you all )))

yes, i saw some sites display other ads with google ads, but as I know you if you use like that, google ad format should be different than the others.

Yes, you can use both Amanzon and Adsense in the same page. There have no problem.