Question

Fill in the blanks with suitable words:

1. The top soil has a dark layer made of ..............?................ .

2. Mushroom is a type of........?...........

3. Polythene is tough but.........?..........

4 Petroleum is usually found in
rocks...............?.............​

Answer 1

Answer:

1-humus

2-plant

3-smooth

4-sedimentary rock