Science Class 8th

281. Transfer of characteristics from parent to offspring is called

A. Heredity

B. Transformation

C. Characterization

D. Genetics

282. Which of following form basis of heredity

A. Chromosome 

B. Gene

C. DNA

D. All

283. Sibling resemble

A. Parents

B. One another

C. Any from above is possible

D. A and B

284. Characteristics which pass from one generation to another is called

A. Inheritable

B. Heretible

C. None heretible

D. None

285. Characters which can,t transfer from generation to generation

A. Interetible

B. Heretible

C. Non inheritable

D. All

286. Eye color is

A. Inheretible

B. Heretible

C. None heretible

D. None

287. Color of eye is controlled by

A. Single gene

B. Pair of gene

C. Single DNA

D. One chromosomes

288. Production of brown pigment in iris of eye is controlled by

A. Genes

B. Food

C. Energy

D. None

289. If gene work and produce more pigment in eye

A. Black color

B. Brown color

C. Red color

D. Any one is possible

290. Production of less pigment in eye then its color would be

A. Light brown

B. Dark brow

C. Black

D. None

291. Color of eye is different due to

A. Environment 

B. color of pigment

C. Amount of pigment

D. All

292. Attached and detached earlobe is

A. Heretible

B. Inheretible

C. Non heretible

D. None

293. Heat is transferred from one body to another due to _____ in temperature

A) Low

B) High

C) Difference

D) Same

294. _____ is the main source of heat. A

A) Moon

B) Heat

C) Water

D) Sun

295. In ancient time the method used for heat production was _____

A) Sunlight

B) Friction

C) Water

D) Fire

296. The ____ is the SI system unit for measuring heat.

A) Newton

B) Joule

C) Calories

D) None the above

297. 1 calories = ______ joules.

A) 7.81

B) 6.81

C) 4.81

D) 5.81

298. Solid, liquids and gases are expand on heating, the process is called _____ expansion

A) Convection

B) Heat

C) Thermal

D) Cool

299. Molecule are in _____ motion in solids, liquids and gases.

A) Random

B) Constant

C) General

D) None of the above

300. When the solids, liquids and gases heated, the movement of the molecules _____

A) Decreases

B) Increases

C) Stop

D) None of the above