changes in ecosystem

What will happen if too many trees in a forest are cut down? (Apa yang akan terjadi jika terlalu banyak pohon di hutan ditebang?)

• More animals will come
• Loss of animal habitats
• Air will become cleaner
• More rainfall

Which of the following is a natural change in an ecosystem? (Manakah dari berikut ini yang merupakan perubahan alami dalam ekosistem?)

• Volcanic eruption
• Deforestation
• Pollution
• Industrial waste

What is the effect of toxic substances on fish in a river? (Apa dampak zat beracun pada ikan di sungai?)

• Fish population decreases
• Fish grow faster
• More fish are born
• No effect

If one species disappears from a food web, what may happen? (Jika satu spesies menghilang dari jaring-jaring makanan, apa yang mungkin terjadi?)

• The ecosystem stays the same
• Other species are affected
• More producers appear
• Nothing changes

Which of the following is caused by human activity? (Manakah dari berikut ini yang disebabkan oleh aktivitas manusia?)

• Earthquake
• Pollution
• Volcanic eruption
• Tsunami

What may happen if pesticides enter the soil? (Apa yang mungkin terjadi jika pestisida masuk ke tanah?)

• Plants will die
• Soil becomes more fertile
• More animals appear
• Air becomes fresh

Why do animals move to a new area when their habitat is destroyed? (Mengapa hewan pindah ke daerah baru saat habitatnya hancur?)

• To find food and shelter
• To make new friends
• To avoid sunlight
• To sleep more

What is the impact of oil spills in the ocean? (Apa dampak tumpahan minyak di laut?)

• Fish and birds are poisoned
• Water becomes fresh
• Plants grow better
• More oxygen is produced

Which action can help protect ecosystems? (Tindakan mana yang dapat membantu melindungi ekosistem?)

• Burning forests
• Recycling waste
• Using more plastic
• Polluting rivers

If toxic chemicals enter a food chain, what happens to top predators? (Jika bahan kimia beracun masuk ke rantai makanan, apa yang terjadi pada predator puncak?)

• They become healthier
• They are not affected
• They may die or get sick
• They produce more babies