14.Whatdoestheunderlined word “repress”inthe lastparagraphreferto? A.Control. B.Hold. C.Vary. D.Test. 15.Whatdoesthewriterwanttotellusinthetext? A.It?surgenttofightthevirus. B.Thevirushascausedmanydeaths. C.Lifeisfragileinfaceofdisasters. D.Actionisneededforclimatechange. 第二节(共5小题;每...
A.Theroboticflycanreplaceanimalsinsomeexperiments. B.Animalsarenotallowedinbiologicalexperiments. C.Theroboticflyisdesignedtolearnaboutinsects. D.Thereusedtobefewwaystostudyhowinsectsfly. ( )8.Whatisthemainideaofthepassage? A.Thedevelopmentoftheroboticfly. B.Theroboticflypromotesengineeringscience. C.Harvard?
• See how pollution and human activity are harming sea life. • With real videos of marine animals. • Suitable for all ages from 3+. ABOUT LEARNY LAND At Learny Land, we love to play, and we believe that games must form part of the educational and growth stage of all children;...
What is the type of pollution that impacts the carbon cycle? How does ecological succession affect forests? How do you think humans have an impact on the environment? What is environmental ethics? What often happens after a natural disturbance has damaged a healthy ecosystem?
The best way to reduce your contribution to ocean pollution is by not eating sea animals. You can also use as little single-use plastic as possible, and make steps toward a zero-waste or low-impact lifestyle. Additionally, you can pick up trash whenever possible, especially on beaches, to...
The intensification of agriculture has led to the widespread use of chemical pesticides for the control of pests and diseases. However, it has been demonstrated that these pesticides can enter the animal body through a number of different pathways, with
Some studies suggest that noise may cause hearing loss of marine animals. Besides, many marine animals are showing higher levels of stress due to noise, which might also affect the immune(免疫) system. Scientist Juanes says sound pollution may be easier to deal with than other ocean threats. ...
How are air currents winds related to ocean currents? How do ocean currents affect animals? What causes evaporation? What causes a tornado? What causes a bolt of lightning? What are the causes and effects of cyclones? How do air currents move about the Earth?
How does water pollution affect marine life? What causes floods on the Indus River? What causes nitrates in well water? How many types of water pollution are there? Where does most nonpoint source pollution come from? How are animals affected by water pollution?
Why does biodiversity loss occur in the ocean? How does pollution affect biodiversity loss? How do invasive species cause biodiversity loss? What does biodiversity affect? How does loss of biodiversity affect agriculture? How does habitat loss lead to biodiversity loss?