A statement proposed before the experiment related to the natural phenomenon which explains the event to a limited extent is known as the scientific hypothesis.
The scientific hypothesis when tested and proved by the researcher and fellow researchers many times transforms the hypothesis either to a scientific law or theory.
The scientific law is a statement which can contain quantifiable variables which describes the pattern and behavior of the natural phenomenon but do not explain why this behavior is observed which in turn is explained by the scientific theory.
Law would be the correct answer to fill in the blank. Law is correct because scientific law explains behaviors of natural phenomenons since it's based on repeated experiments.
Barbara investigating that which food the ants like the most in order to use this food for killing the ants and removes them from a specific area.
Explanation: Ants are insects which sometimes act as pest because it lives in holes in the house and act as a carrier of many harmful diseases so in order to control the spreading of the disease we have to control the population of ants.
If a soil with 3% moisture has twice the rate of erosion as compared to the soil having 7% moisture if both experience same speed of wind i. e. 15 m/s. This is because moisture held the particles of soil tightly with each other and prevent erosion in the soil so if the moisture becomes half in the soil then the rate of erosion is twice or doubled at constant wind speed.