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1. Which of the following is a part of the brain that controls thinking

A

Forebrain

B

Midbrain

C

Hindbrain

D

Spinal Cord

2. The xylem vessels in plants are responsible for the transport of

A

Water from roots to the shoot

B

amino acids from roots to the shoot

C

gluten from roots to the shoot

D

carbon dioxide from roots to the shoot

3. On what cellular structures are genes in eukaryotes carried?

A

Endoplasmic reticulum

B

Nuclear membrane

C

Chromosomes

D

Mitrochondria

4. Pituitary gland, pineal gland and hypothalamus are located in which part of the human body?

A

Kidney

B

Brain

C

Thoracic cavity

D

Neck

5. The increase in global temperatures is the result of

A

Good Climate

B

Greenhouse effect

C

Deforestation

D

Ice formation

6. Eggs in carpels are usually known as

A

Ovaries

B

Ovules

C

styles

D

stigma

7. Hydra is an organism that reproduces asexually by

A

Binary fission

B

Multiple fission

C

vegetative propagation

D

Budding

8. Some preserved traces of living organisms usually on the hardened mud found in the deep layers of the earth are usually known as

A

RNA

B

Histones

C

Fossils

D

Chromosomes

9. Normally, what is the average life span of RBC`s?

A

220 Days

B

4 weeks

C

4 days

D

120 days

10. Food webs are generally known to be

A

irrelevant to food chains

B

having one kind of food

C

independent arrangement of food chains

D

interconnected arrangement of food chains

11. Plant harmones are also called

A

Phytohormones

B

hypothomes

C

metahormones

D

cytohormones

12. Tawa irrigation project is in

A

Madhya Pradesh

B

Orissa

C

Maharashtra

D

Haryana

13. Plants that have lost their capacity to reproduce seeds, usually reproduce by

A

binary fission

B

multiple fission

C

gametic fission

D

vegatative propagaion

14. The source of information for making proteins is generally stored in

A

RNA

B

enzymes

C

DNA

D

rough endoplasmic reticulum

15. Which of the following enzymes is present in the salivary glands of human beings?

A

Trypsin

B

Amylase

C

Lipase

D

Pepsin

16. The pollutant which is responsible for ozone holes is

A

oxygen

B

carbon dioxide

C

sulphur dioxide

D

chlorofluorocarbons

17. In a human body the largest endocrine gland is called

A

pineal gland

B

pituitary gland

C

thyroid gland

D

adrenal gland

18. Which of the following motions is used in windmill to turn the turbine of the electric generator to generate electricity?

A

Rotatory motion

B

Linear motion

C

Vertical motion

D

Circular motion

19. The process in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash, is known as

A

Contour Cropping

B

Terrace Cropping

C

Crop rotation

D

Intercopping

20. Which of the following helps in preventing floods?

A

Deforestation

B

Tilling the land

C

Afforestation

D

Removing the surface soil of the earth