Study the given food web carefully. An increase in frog population is likely to cause_____.
1. Increase in the grasshopper population
2. Decrease in the lizard population
3. Increase in snake population
4. Decrease in hawk population
B2 and 4
C2 and 3
D1 and 3
Rahul wanted to find out how polluted water affects the survival of guppies. Which of the following set-ups should he use to conduct a fair test?
A a and b only
B b and c only
C a and d only
D c and d only
Please explain the answer.
Ram, a class 6 student observed different types of changes and tabulated them in the given table.
Which of the given observations are incorrect?
A1, 4 only
B2, 3 and 5 only
C2 and 3 only
D2 and 5 only
why answer should be B and not c
Which of the following observations confirms that an object is a magnet?
AThe object is attracted by a strong bar magnet.
BThe object causes a compass needle to move.
CThe object rotates before being attracted to a bar magnet.
DThe object is attracted to both poles of a horseshoe magnet.
why is n't answer B Right!
Given below are the differences between self pollination and cross pollination. Which one of them is incorrect ?
|Self pollination||Cross pollination|
|(A)||Pollen grains are transferred from anther to the stigma of the same flower||Pollen grains are transferred from anther to the stigma of another flower of a different plant|
|(B)||Occurs in bisexual flower having anther and stigma maturing at different times||Occurs in bisexual plants having anther and stigma maturing at same time|
|(C)||It takes place in plants like wheat,peas, soybean & peach.||It takes place in plants like lady finger,tomato, brinjal, apple & pear.|
|(D)||All of these.|
answer B is also write
Match different organisms in column-I with their related characteristics in column-II and select the correct option from the codes given below.
A a - (ii), b - (iii), c - (iv), d - (i)
Ba - (iii), b - (ii), c - (iv), d - (i)
Ca - (ii), b - (i), c - (iii), d - (iv)
Da - (iv), b - (ii), c - (i), d - (iii)
shouldn't the answer be option A
Refer the given figure showing changes in flag's shadow during the day.
Shadows P, Q and R represent different times of the day. At what time, would Preeti most likely to have ________?
(ii) Evening snacks
A (i) - R, (ii) - Q
B (i) - P, (ii) - Q
C (i) - R, (ii) - P
D (i) - P, (ii) - R
Seems to be wrong answer,breakfast will be in the morning ,,that's "R" not "p"
Which of these feet would help hens in scratching the ground to dig out insects and worms.
what is difference in ans a and cwhy only c is correct