Answer:
Barrier.
Explanation:
The weather is called a barrier because it stops you from completing your task within the given time. With this weather condition, you are unable to complete your task due to unavailability of internet which is required for your task. Weather such as thunderstorm can disrupt the internet service to a specific area because thunderstorm can destroy whatever comes in its way so if thunderstorm prevent you from doing your task complete in a given time so it is a barrier.
both having gravity, you can touch and see both of it. It also possible if microorganisms can live on both of them.
They both have shape also.
Cetaceans are evolved from mammals ! Cetaceans are thought to have evolved during the Eocene or earlier, sharing a closest common ancestor with hippopotamuses.
They are descendents of Mammals !! And that four legged is hippo !!
So I think and sure of Mammals ....To be the answer !!
