Answer:
How invisible particles can be observed in outer space. ... We call this invisible mass dark matter since it cannot reflect light. Gravitational effects are only way we can detect its presence.
Answer:
parque? halos espanol? mundo pues repe noblacion
Explanation:
General el para en américa
1 Interest groups deal with social and industrial issues. 2 Immigrants are people who migrate from their native Country to live in another Country. 3 Political action committees deal with internal issues of the political party.