Here are 10 one-word answer type questions from the topic Seed Dispersal with answers and explanations:
Topic: Seed Dispersal
Seed dispersal is the process by which seeds are spread to different places away from the parent plant. It prevents overcrowding and competition for sunlight, water, and minerals. Seeds are dispersed by agents like wind, water, animals, and explosion of fruits.
1. Question: What is the process of spreading seeds to different places called?
Answer: Dispersal
Explanation: Dispersal is the natural process through which seeds are scattered away from the parent plant.
2. Question: Name one natural agent of seed dispersal.
Answer: Wind
Explanation: Wind helps in seed dispersal, especially for light seeds like those of drumstick and maple.
3. Question: Which agent helps in seed dispersal by carrying spiny seeds on their body?
Answer: Animals
Explanation: Animals carry seeds like Xanthium and Urena which have hooks and cling to their fur or clothes.
4. Question: Name one seed dispersed by water.
Answer: Coconut
Explanation: Coconut has a fibrous outer coat that helps it float and get dispersed by water.
5. Question: Which structure of some seeds helps them to float on water?
Answer: Fibrous coat
Explanation: Seeds like coconut have a fibrous or spongy coat that enables them to float.
6. Question: What is the main reason for seed dispersal?
Answer: Overcrowding
Explanation: Seed dispersal prevents overcrowding and competition among seedlings for resources.
7. Question: Name one seed that is dispersed when the fruit bursts open.
Answer: Balsam
Explanation: In balsam, seeds are thrown far away when the fruit bursts suddenly.
8. Question: Which type of seeds are usually dispersed by wind?
Answer: Light
Explanation: Light and winged seeds like those of maple are easily carried away by wind.
9. Question: Name one plant whose seeds are dispersed by sticking to animal bodies.
Answer: Xanthium
Explanation: Xanthium seeds have spines or hooks that stick to animal bodies for dispersal.
10. Question: Dispersal of seeds enables plants to grow in new ___________.
Answer: Habitats
Explanation: Dispersal helps seeds to reach new places, allowing plants to grow in new habitats.
If you want, I can prepare all three topics’ questions in worksheet format for student practice as well.
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