Refer to the given graph which shows changes in temperature at two places X and Y over the year and answer the following questions.
The animals living at Y should be having adaptations like ________.
A Reduced sweating
B Thick layer of fur
C Ability to easily climb up and down trees.
D Gills to breathe underwater.
The book says that the correct answer is 'a' but online it shows the correct answer as'b'.
Three similar cages containing same number of pollution sensitive fish X were placed in three different ponds (R, S and T). The given graph shows the change in the number of fish in three cages over time.
According to the given graph which pond is most polluted (I) and which pond has the highest concentration of dissolved oxygen in the water (II)?
Radha carried out an experiment to find out how fast water can pass through three different types of soil. She set up the experiment as shown below. Using a stop watch, she measured the time taken for 20mL of water to pass through each type of soil.
She recorded the results as shown below:
Identify soils X, Y and Z and select the correct option regarding them.
AY type of soil is usually found in deserts.
BPotters use X type of soil to make pots.
CSoil Z contains nutrients and humus in right proportion which makes it suitable for growth of most plants.
DAll of these
Refer to the given graph showing temperature changes at a place over a year. Select the correct option regarding it.
A At time P, one should wear a sweatshirt and woollen pants.
B At time Q, one should wear muffler and woollen gloves.
C At time R, one should wear shorts and cotton t-shirt.
D None of these
Refer to the given figure showing three parent species, X, Y and Z (in plot I) and their respective seedlings after dispersal (in plot II).
Select the incorrect statement regarding species X, Y and Z.
(i) X could be pea plant in which fruits burst open forcibly after drying.
(ii) Y could be Xanthium in which seeds are hooked i.e., have spines.
(iii) Z could be Acer in which fruits and seeds have wings or hair like structure.
(iv) X could be coconut, Y could be lotus and Z could be Calotropis.
A (iii) and (iv) only
B (i) and (ii) only
C (iii) only
D (iv) only