Options:
- A. remain the same
- B. decrease
- C. become zero
- D. increase
View Answer
D. increase
Everyday Science
All of these are benefits of bacteria except ______?
Options:
- A. Decomposition
- B. Oxygen Production
- C. Nitrogen Fixation
- D. None of these
View Answer
B. Oxygen Production
The process in which seed grows in to a new plant is called ______?
Options:
- A. Fertilization
- B. Germination
- C. Vernalization
- D. None of these
View Answer
B. Germination
Friction can be reduced by changing from _________?
Options:
- A. Rolling to sliding
- B. Sliding to rolling
- C. Dynamic to static
- D. Potential energy to kinetic energy
View Answer
B. Sliding to rolling
vitamin D is chemically know as_________ ?
Options:
- A. Retinol
- B. Calciferol
- C. Tocopherol
- D. None of these.
View Answer
B. Calciferol
Lignite, bituminous & anthracite are different rank of _________ ?
Options:
- A. Iron
- B. Coal
- C. Wood
- D. None of these
View Answer
B. Coal
Development of calf muscles in ladies who wear high heels is a common example of:
Options:
- A. Natural Selection
- B. inheritance of acquired character
- C. Use and disuse of organ
- D. Artificial selection
View Answer
B. inheritance of acquired character
Which of the following is called smallest, shallowest and coldest ocean of the world?
Options:
- A. Pacific Ocean
- B. Indian Ocean
- C. Arctic Ocean
- D. None of the above
View Answer
C. Arctic Ocean
In a photocell light energy is converted into?
Options:
- A. potential energy
- B. chemical energy
- C. heat energy
- D. electrical energy
View Answer
D. electrical energy
Which of the following is an example for cantilever beam?
Options:
- A. Diving board
- B. Bridge
- C. See-saw
- D. Common balance
View Answer
B. Bridge