1701. What is not a green house gas ?

A. Carbon dioxide
B. Nitorgen *
C. Methane
D. Ozone

1702. What system our brain is in ?

A. Respiratory system
B. Bone system
C. Nervous system *
D. Digestive system

1703. Which of the followings is used common in storage batteries ?

A. Copper
B. Mercury
C. Lead *
D. Silicon

1704. In a standard drug test, Which seeds can cause false positive results for opium use ?

A. Pumpkin
B. Sunflower
C. Poppy *
D. Sesame

1705. Epiphytic and parasitic plants grow on which of the following ?

A. Humans
B. Rocks
C. Dogs
D. Plants *

1706. What is the atomic number for Hydrogen ?

A. 36
B. 12
C. 1 *
D. 24

1707. The branch of study dealing with old age and aging is called :

A. Oncology
B. Gerontology *
C. Teratology
D. Omithology

1708. If a green leaf is seen in a red light its color wil be :

A. Black *
B. Red
C. Blue
D. Yellow

1709. Half-time is a time of _________ taken by that substance to decompose radioactivity to half of its weight :

A. Radioactive substance *
B. Plants and Animals
C. Solid Substance
D. Gases substance

1710. Light energy is stored in the form of _________ due to the activity of chloroplast :

A. Electrical energy
B. Mechanical energy
C. Chemical energy *
D. None of the above