1. especially in some complicated experiments u need someone to help you to complete that.for example one will pour thr chemical and other can hold the beaker
2. if one of them had some lab accidents such as chemical spilled in eye the other can immediately report to an adult or teacher
The two moons of Mars.Answer:B
It is ecosystem !!!!!!!!!!!!!!!!!!!!
Answer:
- Determine what information is required to collect
- Determine the methodology used for data collection
- Determine the methodology used for analyzing data
Explanation:
Data collection is the process of obtaining and measuring information on a variable of interest, which is used to answer questions about a particular issue and to obtain conclusions by the evaluation of the outcomes. Data collection represents an important issue from a broad spectrum ranging from social sciences to physical/natural sciences, as well as in business structures. For example, in an international company, such data collection enables to save money by building customer's databases that help to reduce marketing efforts. Methodologies for data collection include observational procedures, interviews, questionnaires and group discussions.
