tuanlam2k1 3/17/2025 9:07:03 PM

Question 11: Droughts, floods, and hurricanes are all effects of __________, which is changing weather patterns.
         
A. traffic jam                 B. global warming         C. construction site         D. ecological balance

Question 12: The destruction of forests is a serious __________ to many wild animals.
        
A. threat                 B. benefit                 C. support                 D. success

Question 13: One way to help protect the planet is to __________ resources, such as paper, plastic, and glass.
        
A. recycle                 B. waste                 C. avoid                 D. destroy

Question 14: Scientists study __________ to understand how living things interact with each other and their environment.
        
A. ecology                 B. ecological                 C. chemistry                 D. chemical

Question 15: The Great Barrier Reef is home to thousands of marine species, making it one of the most __________ ecosystems on Earth.
        
A. harmful                 B. fascinating                 C. essential                 D. vital

Question 16: The Amazon Rainforest, __________ is often called the "lungs of the Earth," produces about 20% of the world's oxygen.
        
A. who                 B. which                 C. whose                 D. where

Question 17: Deforestation leads to __________ loss, which forces many animals to leave their natural homes.
        
A. habitat                 B. pollution                 C. climate                 D. resource

Question 18: Many scientists believe that __________ warming is one of the biggest challenges facing humanity today.
        
A. regional                B. local                 C. global                 D. seasonal

Question 19: The __________ is a region that experiences extreme cold and is home to animals like polar bears.
        
A. desert                 B. grassland                 C. pole                 D. forest

Question 20: The Earth __________ the Sun in approximately 365 days, causing the change of seasons.
        
A. orbits                 B. escapes                 C. creates                 D. avoids

[C9GB] UNIT 10_HS