what do the japanese hornets do to give a signal to the others in their colony that a european honeybee nest is in the area?

Japanese hornets do to give a signal to the others in their colony that a European honeybee nest is in the area that is called as Pheromone marks

Explanation:

The Japanese giant hornets are very large and aggressive. Its sting is so dangerous that it disturbs the nervous system and causes damage to the victim’s tissue. Once a Japanese Hornet locates a hive of the European honey bee, it quickly leaves a mark known as the pheromone which helps attract its nest mates.

The Japanese hornet has the capability of killing 40 honey bees in one minute. Hence a group of 30 can destroy 30,000 bees in a matter of four hours. Then these hornets take these savaged bees to their nests to feed their larvae.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.

answer: a woodchuck could chuck 700 pounds of wood.