To merge separate partitions on an external hard drive, you can use a disk management tool like Disk Management on Windows or Disk Utility on macOS. First, back up any important data on the partitions you want to merge. Then, open the disk management tool, delete the partitions you want to merge, and create a new partition that spans the entire capacity of the external hard drive. Finally, format the new partition and restore your backed-up data. **

Companies merge for various reasons, such as to achieve economies of scale, increase market share, expand into new markets, diversify their product offerings, and gain access to new technologies or resources. Merging allows companies to combine their strengths and resources to create a stronger, more competitive entity in the market. It can also help companies reduce costs, improve efficiency, and increase profitability by eliminating duplicate functions and streamlining operations. Additionally, mergers can be a strategic move to fend off competition, respond to changing market dynamics, or capitalize on growth opportunities. **

One can filter or purify water using various methods such as boiling, using a water filter, adding chlorine or iodine, using UV light, or using a water purification tablet. Boiling water is one of the most effective methods to kill bacteria, viruses, and parasites. Water filters can remove impurities and contaminants from water, making it safe to drink. Adding chlorine or iodine can also kill harmful microorganisms in the water. UV light can be used to disinfect water by destroying the DNA of microorganisms. Lastly, water purification tablets can be used to kill bacteria and viruses in the water. **

Yes, this water filter can purify river and seawater. The filter uses advanced technology to remove contaminants such as bacteria, viruses, and heavy metals from the water, making it safe to drink. It is designed specifically for use in outdoor settings where access to clean water sources may be limited, making it an ideal solution for purifying water from rivers and the sea. **

In Excel, you can merge rows by selecting the cells you want to merge, right-clicking, and then choosing the "Merge & Center" option. This will combine the selected cells into one, centered cell. You can also choose the "Merge Across" option to merge cells in a row while keeping the cells in other rows separate. Additionally, you can use the "Merge Cells" option to merge cells without centering the content. **

A mail merge is a process that allows you to create personalized documents, such as letters or emails, by combining a template with a data source. This data source typically contains information that is unique to each recipient, such as their name or address. By using a mail merge, you can efficiently send out bulk communications that are tailored to each individual, saving time and effort. **

Merge Sort works by dividing the unsorted list into smaller sublists, sorting those sublists recursively, and then merging them back together in the correct order. This process continues until the entire list is sorted. The key step in Merge Sort is the merging process, where the sorted sublists are combined in a way that maintains the order of the elements. This algorithm is efficient and has a time complexity of O(n log n) in the worst-case scenario. **

One can merge JSON by combining the key-value pairs from two or more JSON objects into a single JSON object. This can be done by creating a new JSON object and then adding the key-value pairs from each of the original JSON objects into the new object. If there are conflicting keys, the values can be overwritten or merged based on the specific requirements. There are also libraries and functions available in various programming languages that can help with merging JSON objects. **