Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals____47___feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal ...
Nguyễn Thanh Thảo | Chat Online | |
07/09 11:38:00 (Tiếng Anh - Lớp 12) |
Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of plant dies off, the animals____47___feed on it may also die or move away. Some changes are good for ecosystems. Some pine forests need fires for the pine trees to reproduce. The seeds are sealed inside pinecones. Heat from a forest fire melts the seal and lets the seeds ____48___. Polluting the air, soil, and water can harm ecosystems. Building dams on rivers for electric power and irrigation can harm ecosystems ____49___ the rivers. Bulldozing wetlands and cutting down forests destroy ecosystems. Ecologists are working with companies and governments to find better ways of ___50____ fish, cutting down trees, and building dams. They are looking for ways to get food, lumber, and other products for people without causing harm to ecosystems.
Some changes ____46___ ecosystems Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. harms 0 % | 0 phiếu |
B. harmful 0 % | 0 phiếu |
C. harmless 0 % | 0 phiếu |
D. harm 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of ... (Tiếng Anh - Lớp 12)
- Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of ... (Tiếng Anh - Lớp 12)
- Any change in one part of an ecosystem can cause changes in other parts. Droughts, storms and fires can change ecosystems. Some changes ____46___ ecosystems. If there is too little rainfall, plants will not have enough water to live. If a kind of ... (Tiếng Anh - Lớp 12)
- Located in central Africa, Lake Victoria is a very unusual lake. __( 116 )__ of the largest lakes in the world; it is also one of the youngest. Estimated to be about 15,000 years old, it is a relative baby compared with Earth’s other very large ... (Tiếng Anh - Lớp 12)
- Located in central Africa, Lake Victoria is a very unusual lake. __( 116 )__ of the largest lakes in the world; it is also one of the youngest. Estimated to be about 15,000 years old, it is a relative baby compared with Earth’s other very large ... (Tiếng Anh - Lớp 12)
- Located in central Africa, Lake Victoria is a very unusual lake. __( 116 )__ of the largest lakes in the world; it is also one of the youngest. Estimated to be about 15,000 years old, it is a relative baby compared with Earth’s other very large ... (Tiếng Anh - Lớp 12)
- Located in central Africa, Lake Victoria is a very unusual lake. __( 116 )__ of the largest lakes in the world; it is also one of the youngest. Estimated to be about 15,000 years old, it is a relative baby compared with Earth’s other very large ... (Tiếng Anh - Lớp 12)
- Located in central Africa, Lake Victoria is a very unusual lake. __( 116 )__ of the largest lakes in the world; it is also one of the youngest. Estimated to be about 15,000 years old, it is a relative baby compared with Earth’s other very large ... (Tiếng Anh - Lớp 12)
- Researchers in communication show that more feelings and intentions are (1) _______ and received nonverbally than verbally. Mehrabian and Wienerfollowing have stated that only 7% (2) _______ message is sent through words, with remaining 93% sent ... (Tiếng Anh - Lớp 12)
- Researchers in communication show that more feelings and intentions are (1) _______ and received nonverbally than verbally. Mehrabian and Wienerfollowing have stated that only 7% (2) _______ message is sent through words, with remaining 93% sent ... (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Dialogue completion: Choose A, B, C, or D to complete each dialogue. Mike: You’ve been working out regularly, haven’t you? Nhung: _____________ (Tổng hợp - Lớp 12)
- You can’t just bury your head in the sand and hope that this problem goes away, you know. (Tổng hợp - Lớp 12)
- Antonyms: Choose A, B, C, or D that has the OPPOSITE meaning to the underlined word/ phrase in each question. Why do you always contradict me and say that what I’m saying isn’t true? (Tổng hợp - Lớp 12)
- ‘I want each and every one of you here to put forward as many suggestions as possible’, said the boss bossily. (Tổng hợp - Lớp 12)
- Synonyms: Choose A, B, C, or D that has the CLOSEST meaning to the underlined word/ phrase in each question. The outer structure of the building has been completely renovated and the interior decorators will be starting inside next week. (Tổng hợp - Lớp 12)
- At the end of the performance, the audience _______ the cast of Mamma Mia! by giving them a standing ovation. (Tổng hợp - Lớp 12)
- You should _______ a professional to check your house for earthquake damage, just to be sure there’re no hidden cracks that could cause problems later. (Tổng hợp - Lớp 12)
- If the school _______ aren’t written down anywhere, how are students supposed to know what they are to follow? (Tổng hợp - Lớp 12)
- Tom Cruise wouldn’t be the star he is today _______ made a good impression in his early films. (Tổng hợp - Lớp 12)
- Pia has always wanted to be a travel _______ and take pictures of exotic places. (Tổng hợp - Lớp 12)