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You do an activity involving germination of gram seeds with children where each child tries germination in different conditions (1) in the air only (2) in air and water (3) completely dipped underwater. The children enter the result in their notebook in a table, analyse and conclude that both air and water are required for germination. Which one of the skills children aren't exposed to?
Kamala has three cylindrical containers, each with radius 20 cm that she wants to fill with grain. If her bag of grain contains 100 kg of grain, and she fills all three containers to a height of 70 cm, how much grain will be left in the bag, if 1 kg grain occupies 3000 cm3 space? (Use π = \(\frac{{22}}{7}\))
In the following question, sentences of a paragraph have been jumbled and labelled as A, B, C and D. You are required to rearrange the jumbled sentences of the paragraph and mark your response accordingly by selecting the correct option. A: The most common example of germination is the sprouting of a seedling from a seed. B: It is also the process of reactivation of the metabolic machinery of the seed. C: It is usually the growth of a plant contained within a seed; it results in the formation of the seedling.  D: Germination is the process by which an organism grows from a seed or similar structure.
Consider the following statements regarding the germination of pollen grain and choose the correct answer:
1. The content of the pollen is a true male gametophyte
2. The pollen tube comes out due to the protrusion of the exine through the germ pore
3. When the pollen grain has germinated, the pollen tube penetrates the stigma through the stigmatic papillae
4. Some stigmas have a continuous cuticle in which pollen tubes penetrate by enzyme action
Which of the following can be considered as the positive features of multilingualism in India? I. It encourages the acceptance of many languages in Indian communities II. Multilingualism tends to influence a person towards only “Hindi” III. It encourages children to avoid various different regional languages and focus on English
Which of the following methods of teaching-learning of EVS encourages children to explore their environments and encourages them to use, think and establish connections?
Many of the germination inhibitors may be leached out of one plant and may inhibit the growth or seed germination of a plant from another species. Plants that exhibit this kind of competitive behaviour are said to be
A trader buys jowar at Rs. 30 per kg. 20% of the grain gets wasted. He plans to sell the remaining grain so that he makes 40% overall profit. At what price (in Rs. per kg) should he sell the grain?
Grain boundary diffusion makes a significant contribution to the total flux when___(Db and D1 are the diffusivities through the grain boundary and defect free lattice and ȣ, d are the effective thickneβ and grain size).
Calculate the mean diameter of the grain at t=5sec, Assume the grain boundary energy and mobility are given as 5 Nmm-1 and 10mm3J-1s-1 respectively? (Assume the mean size of the grain at t=0 as 3mm)