Which of the following nuts will not be enclosed in fruits?
Betel nut/Arca nut, pine nut, walnut, almond, cashew nut, nutmeg.

Which of the following nuts will not be enclosed in fruits? What are the peculiar characteristics of these plants? Betel nut/Areca nut, pine nut, walnut, almond, cashew nut, nutmeg.

Which of the following nuts will not be enclosed in fruits? What are the peculiar characteristics of these plants? Betel nut/Areca nut, Pine nut, Walnut, almond, cashew nut and nutmeg.

Make two pendulums of the same length with the help of thread and two nuts. Tie another thread in the horizontal position. Tie the two pendulums to the horizontal thread in such a way that they will not hit each other while swinging. Now swing one of the pendulums and observe. What do you see?

A box contains 6 nails and 10 nuts. Half of the nails and half of the nuts are rusted. If one item is chosen at random, then find the probability that it is rusted or is a nail.

Paragraph based questions : Read the following paragraph and answer, the questions based on it. The presence or absence of organs is the first criterion for classification of plants. The presence or absence of separate conducting tissues for conduction of water and food is the next consideration for classification. Do the plants bear seeds? If they do then, whether the seeds are enclosed in a fruit or not is also an important criterion for classification. Finally, plants are grouped depending upon the number of cotyledons in the seeds. In 1883, Eichler, a botanist, classified the Kingdom Plantae into two sub-kingdoms. As a result, two sub-kingdoms, cryptogams and phanerogams were considered for plant classification. Which criteria are taken into account while classifying the lower groups of the plants?