Multiple choice

Alburnum is also called

  1. autumn wood

  2. heart wood

  3. sap wood

  4. spring wood

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Alburnum or sap wood is the outer, lighter-colored wood in tree trunks that conducts water and minerals. It contains living cells and is physiologically active. Heart wood is the inner, non-living part; autumn wood and spring wood refer to growth rings formed in different seasons.