Option A is the right one for this question.
The undergrowth of tropical rainforest most likely requires less sunlight.
The tropical rainforest floor receives only 2% of the sunlight; only plants can grow in this region.
The forest floor is a relatively clear of vegetarian, because of the low sunlight penetration.
Answer: C) a factor that may affect an experiment or investigation
Explanation:
This is the best answer. A and B can be eliminated. D describes a controlled variable which is more specific than a scientific variable, thus C is the best answer. It is the best description of just a scientific variable.
You need a hypothesis a control a non control and experimental class you will have 3 sections and over the days u will record the changes
Ginkgos have many angiosperm-like features
The answer is burning coal! Please forgive me if I get this answer wrong!
