Beena performed an experiment on two soil samples X and Y as shown, to study the absorption of water by the soil. She poured 100 ml of water in both the samples and noted the percolated water. Identify X and Y.
|(A)||Laterite soil||Sandy soil|
|(B)||Loamy soil||Desert soil|
|(C)||Sandy soil||Clayey soil|
|(D)||Clayey soil||Sandy soil|
When acids are added to different indicators, some colour changes occur. These colour changes are listed below.
Identify P, Q, R, S and T respectively.
Two dented ping pong balls were each placed in two beakers of water at different temperatures.
|Volume of water (mL)||500||500|
|Temperature of water (C)||25||80|
What happened to the ping pong balls?
(A) Balls expanded in both the beakers.
(B) Ball expanded in beaker P and contracted in beaker Q.
(C) Ball expanded in beaker P and remained as such in beaker Q.
(D) Ball expanded in beaker Q and remained as such in beaker P.
The given diagram shows four different places P, Q, R and S on the Earth. Select the correct match of travel path and the transport means that can be used to travel it.
APQ - Ship only
BPR - Bus only
CRS - Aeroplane or Ship
DSQ - Aeroplane only
Priya wants to carry out a fair test to find out how fast water can pass through four different kinds of soil. She sets up the experiment as shown in the figure below. She uses a stopwatch to measure the time taken for water to pass through each kind of the soil.
Which type of soil is suitable to grow lentils?
Please explain this!!!!
How many food chains are there in the given food web?
answer should be 15