PLEASE HEL

can I get a real-life example of an exothermic reaction?

From which layer of atmosphere is the top layer of the thermosphere? a.troposphere b. stratosphere c.mesosphere d.exosphere hurry me i will give a braineilst

Which of the following claims does the author support the least

The galapagos island contain 13 species of finches four of the species are seen here it is believed that all of the species had one common ancestor and overtime