User Forum

(A) 250

(B) 625

(C) 3,125

(D) 15,625

Rati placed 3 gm each of food W, X, Y and Z in digestive juices E and F for 3 hours. After 3 hours, she recorded the amount of undigested food left in each digestive juice and plotted the graphs as shown below.

Based on the information deduced from the given graphs :
(i) Which of these foods W, X, Y and Z is rich in dietary fibres?
(ii) If digestive juice E is from saliva then which component in the given foods W, X, Y and Z is being digested?

A(i) - Z, (ii) - Starch
B(i) - W, (ii) - Starch
C(i) - Y, (ii) - Fats
D(i) - W, (ii) - Fats

Refer to the given food web. If all the F organisms are killed, which one of the following will happen?


AE would have to find new sources of food.
BZ would have more competitors for food.
CE would decrease in number.
DZ would eat more of E and G.

Rohan flicked the same coin with equal force on three different surfaces X, Y and Z. The distance travelled by the coin on different surfaces in one stroke is tabulated as shown.


Now, select the correct option regarding it.

A X could be glass and Z could be cardboard.
B Y could be cardboard and Z could be polished plane mirror surface.
C X could be laminated plastic sheet and Y could be sandpaper.
D X could be marble floor and Z could be jute mat.

The given picture shows two boys trying to move a boat from the beach into the water. Identify the forces as represented with labelled arrows D, E and F?

Which of these activities will help conserving soil and check soil erosion?

(A) Constructing dams

(B) Stopping overgrazing

(C) Terrace farming

The given grid shows the locations of some places in Gaurav's neighborhood. Moving along the grid lines, what is the least number of blocks from Gaurav's house to the school?

(A) 3

(B) 4

(C) 6

Read the given passage and select the option which fills blanks correctly. Many people wear particular dress called uniform. wears white coat. Ironing of clothes after washing . clothes should be dry cleaned. Insects eat up woollen clothes, so they should be stored with .
                  1                     2                          3                      4

A Doctor          Removes dust          Cotton          Moth balls
B Lawyer         Kills germs              Silk               Silver fish
C Doctor          Kills germs              Woollen        Neem leaves
D Teacher        Removes sweat        Jute               Neem leaves

Four scientists are trying to determine which of the four beakers of water is coldest. Each choice below shows what each scientist said. Which comment gives the best start in finding this answer?

AOne of these feels the coldest to me
BWhich one do you think is the coldest?
CWhat is the freezing point of water?
DIs there any way we can measure the temperature of the water in each beaker?