7. Among the stars being observed in the sky, why is
the sun is the only star visible to the observer on
Earth during day time?
Compared to sun, other stars have
A. farther location
B. lower temperature
C. lesser amount of gases in their system
D. greater amount of oxygen in their system
8. Why can we see different parts of the sky at
different times of the year?
A. Earth rotates on its axis.
B. Sun rotates on its axis.
C. Earth revolves around the sun.
D. Sun revolves around the Earth.
9. Why are some constellations only visible at
certain months of the year? Because of
A. Earth's rotation on its axis
B. Earth's rotation on its orbit
C. Earth's revolution on its axis
D. Earth's revolution on its orbit
10. Which explains why Cygnus is visible to an
observer in Northern Hemisphere every summer
time of the year?
A. Earth rotates on its axis.
B. Cygnus rotates on its axis.
C. Earth revolves around the sun.
D. Cygnus revolves around the Earth.
11. From the following constellations, which can be
seen in the Philippines on a clear night of
December?
I. Orion
III. Ursa Minor
II. Ursa Major
IV. Southern Cross
A. I and II only
B. II and Ill only
C. I, II and III only
D. I, II and IV only​