Which of the following stages in the life history of a silk moth produces silk fibres?
the answer to this question is c r d please tellme
Which of the following does not represent a characteristic of pure substance?
A It has a uniform texture throughout (homogeneous).
B It has a fixed boiling point or melting point.
C It is made up of different types of particles.
D It can be an element or a compound.
The diagram shows two plane
mirrors inclined at an angle of 50º
to each other. A ray is incident on
mirror 1, then the deviation x
(shown in the figure) of ray
after two reflections is
Select the INCORRECT statement from the following.
A The dark coloured humus found in deep layers of soil, makes soil fertile.
B Afforestation protects the soil from erosion.
C Organic manures are less harmful than chemical fertilisers.
D Overgrazing is one of the causes of soil erosion.
answer c correct
Read the given statements and select the correct option.
Statement 1 : Venus is hotter than mercury though it is far away from the Sun.
Statement 2 : Cloudy atmosphere of Venus reflects almost 75 percent of the sunlight that falls on it.
A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.
if it reflects lot of sunlight how can it be the hottest planet??
On which planet is one day longer than a year on the Earth?
I didn't understand this Please explain....
Observe the given figure carefully.
X and Y respectively are
A Zn and Ag
B Au4 and Cu
C Fe and Cu
D Zn and Cu
In the given figure, which of the following switches need to be closed to change electrical energy to sound energy only?
AP, Q and R
BP, R and T
CP, Q, R and T
DP, Q, S and T