unit 3 plants practical exam Flashcards
1
Q
how can humans positively affect plants growth
A
- correct soil pH
- optimum watering
- correct nutrients present
2
Q
how can humans negatively affect plant growth
A
- trampling
- picking wildflowers
- removing hedges/trees so habitat destruction
3
Q
how can they affect destribution of plants
A
sowing crops means fields only have one type of plants and trampling cause unsual widespread distribution patterns because seeds are carried on bottoms of shoes
4
Q
what pH do most plants grow best at
A
between 4.5 and 7.5
