Question

Tick (✓) the correct option.
1. Which of the following is not an agent of physical weathering?
(a)wind
(b)temperature
(c)water
(d)organic acids

2. Which of these is the lowest horizon of soil profile?
(a)subsoil
(b)bed rock
(c)gravel
(d)humus​

Answer 1

Answer:

1. d

2.d(may be correct)

Answer 2

Answer:

1. d) Organic acids

2 b) Bedrock