21. , and scientists are blaming climate change for it. A) Bumblebees have the ability to adapt to changing climate B) Bumblebee habitats are shrinking at a fast rate C) Bumblebees evolved in mild, temperate climates D) Bumblebees are sensitive to environmental influences E) Bumblebees are declining due to the effects of pesticide use in agriculture 22. Asia has nearly one-third of the world's total land area, . A) but it is the only continent that shares borders with two other continents B) for it is home to more than half of Earth's people C) and is the most populated continent in the world D) so it also contains the world's largest country, Russia E) yet it has a great influence on world culture and economy 23. Although most people fear spiders, ..... A) they can have an allergy to these creatures B) they vary in size and colour depending on the species C) they may have had stressful experiences in the past involving these creatures D) these creatures are physically not even able to cause any harm E) some of these creatures produce a poisonous substance that is very dangerous g to 24. If you don't sleep, you may have poor brain performance A) as well as a higher risk of health problems B) but better thinking abilities C) despite the need for 8 hours of sleep every night D) but it can disrupt your sleep pattern even further in the long term E) because of the connection between too much sleep and too little energy