Answer:
A
Explanation:
A hypothesis is a suggested explanation or an explanation given in advance for a certain event based on limited evidence, that is then tested through experiments.
There are different types of hypothesis, such as:
- Simple hypothesis
- Complex hypothesis
- Working or Research hypothesis
- Null hypothesis
- Alternative hypothesis
- Logical hypothesis
- Statistical hypothesis
Answer:
Climate change
Explanation:
Global warming - Increased rainfall, glaciers and sea ice melt, influx of warm freshwater onto the sea surface blocks formation of sea ice, disrupting the sinking of cold, salty water.