Groups of stars gathered in distinctive shape.
solar system
milk way
Galaxy
An observer in a moving car with 80 km/h was observing a moving car with 90 km/h in the same direction so, the observed speed of the 2nd car is
80 km/h
10 km/h
90 km/h
170 km/h
When a moving object covers equal distances in unequal intervals of time, so it moves by…..
average speed
irregular speed
uniforms speed
relative speed
The solar system lies on one of the spiral arms of Milky way galaxy
True
False
Crossing over phenomenon happens between the . inner chromatides of the tetrad during the meiosis division.
The formed image of an object that is put at the centre of curvature for a convex lens is virtual enlarged
The radius of curvature of a mirror is the radius of the sphere that the mirror part of it.
............ the ability of some animals to compensate their missing parts.
Fertilization
binary Fission
Regeneration
An object was put at 10 cm from a concave mirror, a real, inverted and equal image was formed, if the object moved 3 cm towards the mirror, so the formed image will be…….
virtual enlarged
real, inverted and diminished
virtual diminished
real, inverted and enlarged
...............Seeing the far objects clearly but the close objects are not clearly.
short - sightedness
Long-sightedness
Acceleration is from the ............. quantities
scalar
vector physical
From the scalar physical quantities is.....
velocity
Acceleration
time
The scientist who published a research including his vision about the Nebular assumption
Laplace
Molten
Chamberlin
Fred Hoyle
Condensing the cytoplasm in the two poles of the plant cells forms spindle fibers
Amoeba reproduces by budding