how can i see all layers when i render animation? I have made my different object in different layers &amp; trying to animate like object appear for few sec &amp; again disappears &amp; than other layers object appears &amp; disappears.
but when i render it in object mode it show me same as i want. But when i animate it just show 1st layers &amp; other layers object doesn't appears. how can i see all layers when i do render animation?



this is the image when i do render animation or render image
If I'm not misunderstanding, I believe you want the Render Layers feature. It's in the second tab of the Properties editor 

you can choose which layers are visible in the final render using the boxes on the left-hand side:


Without sphere's layer selected

With sphere's layer selected as well

that's the simplest use for it at least, there's a lot of useful things other than that as well