Besides the arrangement as shown in the given set-up, what other arrangements must be made to test for the presence of starch in the leaves X and Y ?
A The plant should be destarched first and then used for the experiment.
B The plant should be placed in continuous light for 2-3 days prior to experiment..
C On leaf Y, iodine solution should be put on while leaf X should be used as control without iodine application.
D None of these.
please provide an explanation of this answer
A rope is 82.03 m long. John cut off 3.28 m. Then, he cut the remaining rope into 100 pieces of equal length. What is the length of each piece?
(A) 0.07875 cm
(B) 0.7875 cm
(C) 7.875 cm
(D) 78.75 cm
the answer is 0.7875m so it should be 78.75cm
The diagram shows four similar cans. Each can
contains the same volume of water initially at
80°C. After five minutes, which can will contain
the coolest water ?
The given figure shows a pencil put in a glass filled with water.
What is the reason that the pencil appears to be bent?
C Reflection and Refraction
Which of the following form virtual and erect image
for all positions of a self luminous object?
A Convex lens
B Concave lens
C Convex mirror
D Concave mirror
Which one of the following statements is incorrect?
AThe radicle of the seed grows downwards.
BThe plumule forms the future root of the plant
CAfter fertilisation, the ovule forms pollen grains.
DThe embryo of a seed consists of the testa and radicle.
According to the question, we need to choose the incorrect option. And both option(B) and option(C) are incorrect, as the plumule forms the future shoot, rather than root.
Raju's grandfather has weak eyesight and cannot see without spectacles. He has lost his spectacles. Which of these means of communication would help him to get updates?
Aa and b
Ba and d
Cc and d
DAll of these
Read the given statements.
a - is a ____1____ .
b - has a ____2____ beak.
Select the option that correctly fills the above blanks.
A1 - Weaver bird, 2 - Long and curved
B1 - Tailor bird, 2 - Long, pointed and straight
C1 - Flamingo, 2 - Strong, sharp and hooked
D1 - Partridge, 2 - Long and flat
Read the given statements and select the correct option.
Statement 1 : To maintain soil fertility, it is essential to prevent overgrazing and deforestation.
Statement 2 : Roots of plants grasp soil well and prevent removal of top soil by air, water, etc.
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 and statement 2 is false.
D Both statements 1 and 2 are false.
Please see to it that you may have typed the word "fertility" instead on the word "erosion". Soil grasping has nothing to do with soil fertility.