| 1 |
Ina standard drug test which seeds can cause false positive results for opium use?
|
Pumpkin <br>
sunflower <br>
Poppy <br>
Sesame <br>
|
| 2 |
Which of the followings is used common in storage batteries?
|
Copper <br>
Mercury <br>
Lead <br>
Silicon <br>
|
| 3 |
What system our brains is in?
|
Respiratory system <br>
Circulatory system <br>
Nervous system <br>
Digestive system <br>
|
| 4 |
What is NOT a greenhouse gas?
|
Carbon dioxide <br>
Nitrogen <br>
Methane <br>
Ozone <br>
|
| 5 |
Human breath is visible in winter but not in summer because:
|
Water vapour in breath condenses in cold air making it visible <br>
The difference in outside pressure gives visibility to breath <br>
Breath contains certain impurities and visible matters <br>
Nine if these <br>
|
| 6 |
What stored energy is commonly called?
|
Potential energy <br>
Kinetic energy <br>
chemical energy <br>
Radiant energy <br>
|
| 7 |
What products are as a general rule the result of an acid and a base reaction together?
|
Water and salt <br>
water and ethanol <br>
methane gas and dioxide <br>
Hydrogen gas land carbon dioxide <br>
|
| 8 |
What gas the plants contribute to he earths atmosphere?
|
Hydrogen <br>
Nitrogen<br>
Oxygen <br>
Carbon dioxide <br>
|
| 9 |
What organeile is known as the brain of the cell?
|
Nucleus <br>
Mitochondria <br>
chloroplast <br>
cell membrane <br>
|
| 10 |
Which acid id used in a car battery?
|
Hydrochloric acid <br>
Sulphuric acid <br>
Carbonic acid<br>
Nitric acid <br>
|
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