Science

Q. Which of the following acids is found in nettle sting?

A. āĻ…ā§āĻ¯āĻžāĻ¸āĻŋāĻŸāĻŋāĻ• āĻ…ā§āĻ¯āĻžāĻ¸āĻŋāĻĄ
B. āĻ¸āĻžāĻ‡āĻŸā§āĻ°āĻŋāĻ• āĻ…ā§āĻ¯āĻžāĻ¸āĻŋāĻĄ
C. āĻŽāĻŋāĻĨā§‡āĻ¨āĻ¯āĻŧāĻŋāĻ• āĻ…ā§āĻ¯āĻžāĻ¸āĻŋāĻĄ
D. āĻ…āĻ•ā§āĻ¸āĻžāĻ˛āĻŋāĻ• āĻ…ā§āĻ¯āĻžāĻ¸āĻŋāĻĄ

Q. When was the electron discovered?

A. 1895
B. 1898
C. 1896
D. 1897

Q. Candela is the SI unit of which of the following base quantities?

A. Temperature
B. Length
C. Mass
D. Luminous intensity

Q. The pH of soil can be raised by adding ______

A. concrete
B. limestone
C. sand
D. urea

Q. Ringworm is a common skin infection caused by:

A. protozoa
B. fungus
C. bacteria
D. virus