Answer:
a
Explanation:
just took the Q on edge in the test and got a 100
Answer:
the doppler effect helps us Know....
How far away objects in space are.
Hope You got it!
Answer:
correct option is B. The North Star: A second magnitude star
Explanation:
we know that different different star are at different different coordinates at different time of a year
and in the night sky we use planisphere to locate the star and this give us complete idea of location
and we know that in foreground there is a hole and by this we can see background and location of star
and planimetric representation of the celestial sphere in Background of that instrument and we know at centre it is at polar and star is nearest to our north celestial pole
and this star is not the brightest star in the sky, it is 50th of all bright stars
so here correct option is B. The North Star: A second magnitude star
Natural vegetation refers to a plant community, which has grown naturally without human aid and has been left undisturbed by humans for a long time.
.. therefore Phytogeographically, Ethiopia comprises diverse vegetation types, including the tropical lowland rainforest in the southwest, arid and semi-arid dry woodlands in the East, and the Afroalpine forests in the north and southeast.
Some examples of Classified Groups of Vegetation in Ethiopia
Desert and Semi-desert scrublands,
Small-leaved, deciduous woodland of Acacia-Commiphora,
Moist evergreen Montane Rainforest
Lowland semi-evergreen forest
Dry evergreen montane forest and grassland complex
Afro-alpine and sub-Afro-alpine vegetation
Yellow river. It ruled yellow river valley