Which pair is correctly matched?
APulley - Escalator
BPulley - Crane
CScrew - Sharpener
DWedge - Jar lid
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 ________.
Which of these can explain the reason for mud houses being common in desert areas like Rajasthan?
AMud absorbs heat and keeps the house cool.
BRainfall is very scarce in Rajasthan.
CThe roofs are made of thorny bushes.
DBoth A and B