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it is test tube three as it depends on the reactivity series.only in test tube 3 zinc displaces copper and in the rest the metals cant displace the alternate metal as the metal in the salt solution is more reactive than the other metal

you can get confused very very easily

Answer is D.

The correct answer is C.

Answer is D because you can see that the Q decreases and P increases in Z so M was introduced in Z.And the food chain should be P then M and then Q and the arrows show who eats whom.For example,the arrow pointing P back pointing to M tells P eats M.

Tricky question🧐🤨🤔

Yes👍 of ans2

Yes, Z is the right option.

D is the right answer.

D is the correct answer

Answer is D because you can see that the Q decreases and P increases in Z so M was introduced in Z.

The correct answer is D

D is the correct answer

Please give answer

how is it possible

i mean what I said to Areen the newly oficial (did i type it correctly) typing master

The correct answer is option B. Beacause, the germinal disc is surrounded by the yolk.

I don't even understand what it is though. :( :)

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the answer is wrong. The answer should be yolk because i have read that there are only three parts in a egg. Shell, albumen and yolk. There is no part named germinal disc. Pls correct the answer

What?I don't know this.Niether was it in the sipnoses.So,if you answered it correctly,how did you know?Pls answer

and all insects after hathching (did I spell it right) are their baby forms so how do we know which one catapillar tadpole we don't know and Rozan I used to go to the same school as u!

There is a white dot in yolk but i thought it was a yolk only but its grerminal disc

Answer is B because something is on the yolk so it is not supposed to be A-Yolk,it is supposed to be B-Germinal Disc.

bro HOW U TYPE SO MUCH!?!?!?!?!?

is germinal disc the embryo?

The green material is a mixture of copper hydroxide Cu(OH)2 and copper carbonate Cu(OH)2(This is also copy pasted from your solution. Please explain it)

D

the direction of the frictional force is always to the direction of motion that is why the answer should be (b)

please consider the frictional force at the point where the contact is made. See the motion of the wheel carefully. it applies force in the direction of Q. therefore the correct answer is S (D)

SOF your solution is correct but your answer is wrong and do you people even correct the questions

The Direction of motion Explained in the Solution is wrong Kindly assist with the correct answer.

the direction of the frictional force is always to the direction of motion that is why the answer should be (b)

Listen, the motion of the tyre is given, not car. Friction is helping it to move there. therefore answer = D

excuse me, your solution is right but your question is wrong.

sarthak gupta i agree with u

Let me explain all your doubts will be clear. For example when a car is stuck in the mud then when the driver pushes the accelerator the car wheels throw mud backward that means the car's wheels are applying force backward when it wants to go front and if we see definition then we can see that direction of friction is opposite to direction of force applied not direction of motion so here the force applied is backwards so the friction will be with the direction of motion and hence answer is Option D (S)

How is running on floor an advantage? Won't we fall?

c

B

Kicking a football while playing is correct. We can't run on wet floor. We will fall down. That's why in school and malls they use boards to alert that the floor is wet and thus no one should run on it.

B

We are running on wet floor so it is obvious that we'll slip. Admin from Revisewise pls. explain this answer. Please explain.

Answer is C because when friction is applied we will not slip if we run so it is an advantage.

B

please give me solution of this question

Yes.

can you give me the solution for this answerregards nikshay

I think there can be one more possibility of taking out the odd one out that is all other numbers except for 143 which was option a are divisible by 7 well as 143 is not divisible by 7