Three glasses P, Q and R having equal amount of water were taken at room temperature and equal amount of salt was added to each one of them. After that, P was cooled, Q was heated and R was left undisturbed. Water in which glass will now taste most salty?
D All will taste the same.
Match the columns and select the correct option.
|Column I||Column II|
|(A) Excretory system||1. Kidney|
|(B) Digestive system||2. Blood|
|(C) Nervous system||3. Liver|
|(D) Circulatory system||4. Brain|
|(E) Skeletal system||5. Heart|
A (A) - 2, (B) - 3, (C) - 4, (D) - 5, (E) - 6
B (A) - 1, (B) - 3, (C) - 6, (D) - 2, (E) - 5
C (A) - 3, (B) - 6, (C) - 4, (D) - 5, (E) - 2
D (A) - 1, (B) - 3, (C) - 4, (D) - 2, (E) - 6
Consider the given statements and select the option which correctly identifies true (T) and false (F) ones.
(i) Kanha National Park is the first reserve forest of India.
(ii) Kaziranga National Park is famous for rhinoceros.
(iii) The existence of endemic species is often threatened due to the introduction of exotic species from some other geographical area.
(iv) Botanical garden is an in situ method of biodiversity conservation.
Some iron nails were stored in containers for a few weeks as shown in the diagram below.
Only the nails in bottle X rusted. What will be a suitable conclusion for the given experiment?
A Rusting requires water only.
B Rusting requires air only.
C Rusting requires both water and air.
D Rusting requires neither air nor water.
A liquid can be changed into a solid by the process of ________.