Isobars are atoms of different chemical elements that have ______.
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Elements having same atomic numbers but different mass number are called ______.
Which animal do not make any sound?
Giraffe is the animal that do not make any sound.
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Which shows the order in which vertebrates evolved?
Which of the following statements about the reaction below are INCORRECT?
2Pb + C → 2Pb + CO2
A. Carbon di-oxide is getting, oxidisedB. Lead is getting reducedC. Carbon is oxidisedD. Lead oxide is getting reduced
Which one of the following organisms is dependent on saprophytic mode of nutrition?
Saprophytic fungi feed on dead plant and animal remains. Many are extremely beneficial, breaking down this organic material into humus, minerals and nutrients that can be utilised by plants. Agaricus is one among them.
What has teeth but cannot bite?
Saw, Zipper and Gear have teeth but can bite us. Comb have teeth but cannot bite.
The electronic dot and cross structure of ethene is ............