Refer to the given figure. Identify P, Q, R and S and select the correct option regarding them.
AQ controls hormone production, behaviour and body temperature.
BP regulates heart beat and blood circulation.
CR controls musculo-skeletal movements and maintains balance and posture.
DS relays information between spinal cord and brain.
Select the option that groups rocks of two different kinds as shown in the box.
ASlate :: Sandstone
BGneiss :: Shale
CLimestone :: Granite
DSlate :: Pumice
Rajesh set up an experiment as shown in the figure.
He placed two cockroaches in both the jars X and Y. The cockroaches in jar X were given air and water. The cockroaches in jar Y were given air, water and food. From his experiment Rajesh was trying to find out ___.
AWhether the cockroaches need air to live
BWhether the cockroaches need food to live
CWhether the cockroaches need water to live
DWhether the cockroaches can live together in the dark
Read the given passage and select the option which correctly fill the blanks.
In __1___ season, sun shines brightly and days are very hot and sunny. We wear __2___ clothes. These keep our body __3___. We drink __4___ to keep ourselves fresh.
Select the incorrect match.
(i) Cotton - Retting
(ii) Jute - Ginning
(iii) Sliver - Combing
(iv) Spinning - Takli
(v) Knitting - Loom
(vi) Weaving - Charkha
A (i), (ii), (v) and (vi) only
B (iv), (v) and (vi) only
C (ii), (iii) and (v) only
D (iii), (iv) and (v) only
i hate this
Jayesh placed 3 potted plants in an airtight glass tank as shown in the given diagram.
If he placed the set-up in a dark cupboard for a few hours, what would happen to the limewater, after a few hours?
AIt would turn dark blue.
BThere would be slightly less limewater left.
CIt would turn milky.
DThere would be no change.
It is an airtight glass tank,how can plants respire when there is no oxygen inside.