- Assertion (A): A well-lighted and ventilated kitchen is necessary for a comfortable cooking environment and to ensure safety. Good lighting and ventilation help to reduce the buildup of heat and moisture, which are essential in maintaining hygiene. Hence,
Assertion (A) is true.
- Reason (R): Windows and doors having a wire mesh help to keep insects and pests out while allowing ventilation. The idea that windows and doors should not have a wire mesh contradicts the need for proper ventilation and pest control in the kitchen.
Therefore, Reason (R) is false.
आप अदिति / आदित्य हैं। आपकी दादीजी को खेलों में अत्यधिक रुचि है। ओलंपिक खेल-2024 में भारत के प्रदर्शन के बारे में जानकारी देते हुए लगभग 100 शब्दों में पत्र लिखिए।
Samples of four metals A, B, C, and D were added one by one to the following solutions. The results obtained were tabulated as follows:
Use the table above to answer the following questions about metals A, B, C, and D:
(i) Which is the least reactive metal?
(ii) What would be observed if C is added to a solution of copper sulphate?
(iii) Arrange the metals A, B, C, and D in the order of their decreasing reactivity.
There is a circular park of diameter 65 m as shown in the following figure, where AB is a diameter. An entry gate is to be constructed at a point P on the boundary of the park such that distance of P from A is 35 m more than the distance of P from B. Find distance of point P from A and B respectively.