Answer:
World War 1 soldiers had to fight at any time ,day or night.So European glowworms at night guided them.That is how they are clever.
Answer: What are the threats to ecosystem?
Threats to Ecosystems
Habitat Destruction. Economic activities such as logging, mining, farming and construction often involve clearing out places with natural vegetative cover. ...
Pollution. Water, land and air pollution all together play a crucial role in the health of ecosystems. ...
Eutrophication. ...
Invasive species. ...
Overharvesting. ...
UV Radiation.
HOPE THIS HELPS
The answer would be c because longitudo means length or direction
The correct answer is - Sara suddenly became very ill; therefore, she went to see her doctor.
A semicolon is used to separate two sentences, two separate but also connected thoughts. It should come naturally as a pause within a sentence, which is why the first three options are incorrect as they break up the sentence in grammatically incorrect locations.