The given picture shows an aquatic plant.
How does the plant adapt itself to its environment?
(i) Its roots contain air spaces to help it keep afloat.
(ii) It has leaves at the surface of the water to enable them to obtain sunlight.
(iii) It has waxy surface on the leaves to prevent water from collecting on them.
(A) (i) & (ii)
(B) (ii) & (iii)
(C) (i) & (iii)
(D) (i), (ii) & (iii).
Fruit M and fruit N are both dry. Fruit M is light and has a papery skin. Fruit N is long and has a slit along its side. How are the seeds of the fruits M and N dispersed?
AM: By wind; N: By animals
BM: By wind; N: By splitting
CM: By splitting; N: By wind
DM: By water; N: By animals
(B) Light weight and papery skin of a fruit are adaptations to float in air from a long time. The seeds along with the fruit get dispersed to long distances by floating in air. Fruit N has a slit along its side. It indicates that the seeds are dispersed by splitting of the fruit along the slit when matured. There is a line where splitting occurs after maturation, exposing the seeds which will fall from the fruit.
Which three of the following statements explains why solid particles have a definite shape?
AThere is a strong force of attraction between the particles.
BThey can be compressed.
CThey are packed together very tightly.
DThey are arranged in a regular way.
Where are the options?
Read the given flow chart showing energy conversion and identify P - S.
P ------------- Q ------------- R ------------- S
ACar ----- Solar cooker ---- Windmill ----- Walking
BFan ----- Mango tree ----- Car ----- Sleeping
CMicrowave ----- Radio ----- Climbing ----- Reading
DBulb ----- Grass ----- Hydroelectricity ----- Running
How in case of fan electrical energy is converted to light and in case of sleeping chemical energy is converted to kinetic
Read the given paragraph. The American spacecraft Apollo - 7 carrying three passengers viz. Neil Armstrong, Edwin Aldrin and Yuri Gagarin landed on Moon on 21st July, 1979. This was a remarkable day in the history of mankind. They left a flag of NASA there which was specially designed to stay taut on the Moon, where there is no air. There are some errors in the given paragraph. Select the option that correctly identifies their number.
what are the 5 errors in the paragraph
Rhizobium bacteria P and leguminous plants Q are in symbiotic relationship whereas mole R is the predator of leguminous plants. Which of the following graphs, correctly represents their relationship?
Which of the following statements are correct for the given food web?
(i) M is an omnivore.
(ii) N is both a predator and a prey. K
(iii) Without K, all the animals will die eventually.
(iv) Without P, the population of M will increase.
(A) (i) & (ii)
(B) (i) & (iii)
(C) (ii) & (iii)
(D) (iii) & (iv)
Pls explain the correct answer and why.
Find the odd one out.
(D) Both (B) & (C).
How is coal considered as the odd one out in this Question?