National Science Olympiad Forum By SOF Olympiad Trainer - Page 4

User Forum

Subject :NSO    Class : Class 7

Read the given paragraph where few words have been italicised and select the correct option regarding them. Plant that derives nutrition from another plant is called parasite and the other plant is called host. Cuscuta is a partial parasite that prepares its own food and also depends on other plants for water and minerals. Mistletoe is a total parasite that is pale yellow in color and is often seen on tree tops.

AParasite and host must be interchanged.
BCuscuta must be replaced with Rafflesia.
CMistletoe and Cuscuta must be interchanged.
DNone of these


Post Your Answer

Subject :NSO    Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Priya carried out an experiment to test the hardness of objects 1, 2 and 3. The results of the experiment are shown in the given table.

Scratch test Result
(i)
(ii)
(iii)
(iv)

Which of the following shows the correct order of hardness of objects 1, 2 and 3, starting from the hardest?

A1, 2, 3
B1, 3, 2
C2, 3, 1
D3, 1, 2


B

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Which of the following is hidden in the given word grid?


AStructure present in a polar bear that protects it from cold and the structure present in a fish that enables it to breathe underwater.
BBehavioural adaptation that helps Siberian cranes to escape cold winters of their homeland.
CPhenomenon wherein chameleon blends with its surroundings by changing its skin colour to remain unnoticed by its prey.
DPhenomenon wherein a leaf insect externally resembles a plant leaf to remain unnoticed by its predator.


C

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Manoj crossed out mushroom from the group shown here because he felt that it did not belong to this group. Which of the following statements support Manoj's conclusion?

a. Mushroom is a plant while the rest are not.
b. Mushroom is a fungus while the rest are not.
c. Mushroom feeds on decaying things while the rest do not.
d. Mushroom cannot make its own food while the rest can.

Ab and c only
Ba, b and d only
Ca, c and d only
Db, c and d only


D

Post Your Answer