It involves plowing across hill slopes to prevent soil erosion.
An organized way to collect and record scientific observation using a Hypothesis
Explanation:
Hypothesis is known as initial building block in scientist method. Hypothesis is written in the form of statement. It is based on theories and knowledge. It is proposed between two variables and is mainly classified as independent and dependent hypothesis.
There are six forms of hypothesis. They are simple, complex, Empirical, Null. Altered, Logical and statistical. Relation between two variable predictions is simple hypothesis. On the other side complex hypothesis is the relationship between two or more variables.
Auxins promote cell elongation and cell division in stems.
Answer:
4. Microorganism
Explanation:
Wind, Salinity, Soil moisture are abiotic factors, non living things.
prevents backflow into the left atrium
