Asked by Sara

My topic is "Aliens" I have to have question on the topic and my question is: I'm wondering why Aliens can't be seen by humans. The topic must have exigency what does that mean, can u give examples.

help with Research plan and how i can investigate my questions. Thank you!

Research plan
Answered by Ms. Sue
http://dictionary.reference.com/browse/exigency+

What do you mean by aliens? That's the first thing you should research.

Answered by sara
I am talking about the Aliens that are believed to be existed. Do they have other names? Thanks