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为什么——植物篇
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文档概述
This album aims to answer child- ren's questions about nature, and the char- acteristics and functions, of plants. For instance: What do trees live on? Are there any leafless trees? Why do flowers hav...
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First Editon 1995
Questions About Plants
Do Bread Trees Really Exist?
Do You Know How to Tell the Age of Wood?
Why Is a Tree Trunk Always Round?
Why Do Some Trees Have Fine-Haired Leaves and Others
Are There Any Leafless Trees?
Which Is the Thickest and Which Is the Tallest Tree?
Why Do Trees in a Forest Grow Straight?
Why Can a Forest Be Called a Windbreak?
Why, in Autumn, Do Leaves at the Branch Top Wither Last?
Why Shouldn't Leaves Be Burned?
Why Do Forests Often Have "Night Rain"?
Why Do Some Trees Have Hollow Trunks?
Why Do Leaves Turn Yellow or Red in Autumn?
Why Do Leaves Fall in the Cold Season?
Why Are the Pine and Cypress Evergreen?
Why Do the Branches of Fruit Trees Need to Be Pruned?
Why Is It Wrong to Shake Saplings?
How Can We Get the Saplings of Seedless Orange?
Can a Single Tree Bear Different Fruits?
Do You Know How to Make a Leaf Bookmark?
Why Can't Salty Water Be Used to Water Plants?
Why Doesn't the Cactus Have Leaves?
Do Plants "Perspire"?
Why Can't Sprouting Potatoes Be Eaten?
Can Vegetables Be Cultivated Without Earth?
Why Can't Some Flowers Grow into Fruit?
Where Does the Fragrance of Fruit Come From?
What Are the Biggest and Smallest Flowers?
Why Will a Flower Wither if You Damage All Its Leaves?
Why Is It Not Suitable to Water Flowers in the Middle
What is the Function of the Hole at the Bottom of Flower
Why Do Some Apples Have One Side Green, and the Other
Is the Lotus Root Just the Root of the Lotus?
Why Do Plants Have Different Sized Leaves?
Are There Any Stinging Plants?
Are There Any Plants That Swallow Insects?
Where Does Pollen Come From?
Why Is Pollen Nourishing?
Why Do Some Flowers Smell Sweet and Other Do Not?
Is It All Right to Smell Flowers with Your Nose Touching
Are Some Plants Really Poisonous?
Why Does Rain Decrease the Taste of Melons and Fruits in Their Mature Period?
Why Is It Better to Peel Fruit Before Eating?
Why Do Some Long-Stored Fruits Smell Like Wine?
Why Does Peanut Fruit Grow in the Earth?
Why Does a Cut Apple Turn Brown?
What Are the Advantages of Planting Trees?
Why Do Plants Moisture?
How Long Can a Plant Live?
Why Can't Some Seeds Sprout?
Are All Bacteria Harmful?
Is Kelp Plant Leaf?
Why Are Some Radishes Black Inside?
Why Can Jujube Trees Stand Arid Climates?
Why Do Some Trees Have a Burl?
Are There Any Trees that Are Not Afraid of Burning?
Why Do Plants of the Same Species Vary in Height?
Why Is It Necessary to Water Plants on Time?
Do All Flowers Have a Fragrance?
Can Plants Be Propagated from Leaves?
Why Do Flowers Have Different Colours?
How Is Pollen Collected?
Why Do Some Persimmons Taste Astringent?
Why Does Heavy Rain Bring a Good Harvest of Pears?
Why Do Bananas Have No Seeds?
Why Do the Roots of Leguminous Plants Have Swellings?
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