Question

I. Choose the correct answer:
1. In which of these climates is soil formation the fastest?

2. Which of these do amphibians use to breathe in air on land?


3. Which of these are common plant wastes?


4. Which acid is called the ‘king of chemicals’?

II. Fill in the blanks: ​

Answer 1

Answer:

1 SOIL FORMATION

Soils develop faster in warm, moist climates and slowest in cold or arid ones. Rainfall is one of the most important climate factors in soil formation.

2 Most amphibians breathe through lungs and their skin. Their skin has to stay wet in order for them to absorb oxygen so they secrete mucous to keep their skin moist (If they get too dry, they cannot breathe and will die)

3 Carbon dioxide, excess water produced during respiration and nitrogenous compounds produced during protein metabolism are the major excretory products in plants. Plants produce two gaseous waste products i.e. oxygen during photosynthesis and carbon dioxide during respiration.

4 Sulfuric acid