THE VARIETY OF RESOURCES ON EARTH

Which of the following resources does not support animal lives?
1. Air
2. Minerals
3. Soil
4. Plants
Which of the following represents an element?
Which of the following mixtures can be separated by filtration?
1. Cooking oil and water
2. Sugar and water
3. Chalk powder and salt solution
4. Iron filings and sulphur powder
Which of the following processes can be separate the different types of particles in a compound?
1. Electrolysis of water
2. Heat the water until it boils
3. Put a piece of magnesium strip into hydrochloric acid
4. Mix sulphur powder with water
Which of the following processes can be used to separate the different types of particles in a compound?
1. Distillation
2. Filtration
3. Evaporation
4. Electrolysis
P, Q, R and S are four processes carried out to separate a mixture of iron filings, copper sulphate crystal and chalk powder. The coreect sequence of the experiment above is
The diagram shows the classification of matter. Which represents R.
1. Water
2. Air
3. Gold
4. Petroleum
The diagram shows the classification of matter. What are X and Y?
1. X = Carbon dioxide , Y = Potassium
2. X = Carbon , Y = Sodium
3. X = Air , Y = Copper
4. X = Water , Y = Chlorine
Which of the following atomic arrangements represents an element?
Sea water contains various salts which can be extrated by
1. filtration
2. using separating funnel
3. evaporation
4. freezeing the sea water