Why does endosperm development precede embryo development in angiosperm seeds? State the role of endosperm in mature albuminous seeds.
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- Write the symptoms of malaria in human and explain what causes these symptoms.
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Read the following characteristics of retail trading carefully and choose the correct option:
I. This is concerned with the sale of goods directly to the consumers.
II. Most of the retail trading takes place in fixed establishments or stores.
III. It is formed by many middlemen, traders, and suppliers.
IV. Hawkers, street peddling, automatic vending machines, etc., are its examples.
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Read the programmes related to the proposed Bharatmala umbrella scheme carefully and choose the correct option:
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Write a user-defined function in Python named showGrades(S) which takes the dictionary
Sas an argument. The dictionaryScontains Name: [Eng, Math, Science] as key:value pairs.
The function displays the corresponding grade obtained by the students according to the following grading rules:
\[ \begin{array}{|c|c|} \hline \textbf{Average of Eng, Math, Science} & \textbf{Grade} \\ \hline \geq 90 & A \\ \hline < 90 \text{ but } \geq 60 & B \\ \hline < 60 & C \\ \hline \end{array} \]
Example: Consider the following dictionary: \[ S = \{\text{"AMIT"}: [92, 86, 64], \text{"NAGMA"}: [65, 42, 43], \text{"DAVID"}: [92, 90, 88]\} \] The output should be: \[ \text{AMIT} - B \\ \text{NAGMA} - C \\ \text{DAVID} - A \]- CBSE CLASS XII - 2024
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