In an experiment, if we want to know how the amount of water affects plant growth, the amount of water is the ___. A. independent variable B. dependent variable C. control variable D. experimental variable 相关知识点: 试题来源: 解析 A。在这个实验中,水量是我们主动改变的变量,所以是独立...
We are doing an experiment to see how different amounts of water affect plant growth. The variable here is ___. A. sunlight B. water C. air D. soil 相关知识点: 试题来源: 解析 B。题干中提到不同量的水对植物生长的影响,所以变量是水。选项 A“sunlight”是阳光;选项 B“water”是水;选...
In this experiment, you'll be testing the affects of acidic water on plant growth and development. By the end of the experiment, you'll understand the impact of acid rain on the ecosystem. Introduction Lesson Course 7.4Kviews Materials ...
In gardens the growth of plants also affects the amount of water in the soil. Dormant plants don’t remove much water from the soil, but once they are growing they do. Plants that are located close together remove water faster than the same plants that are farther apart. Rain also affects...
Last time we talked about photosynthesis, the process by which plants use light to convert carbon dioxide and water into food. Today I want to talk about another way light affects plants. I am sure you all know from physics class about how light moves in microscopic ways and that we can ...
Also be on the lookout for blossom-end rot, a nutrient deficiency which alsoaffects tomatoes. Learn more about these and other common problems in our guide to fighting watermelon disease. (coming soon!) Harvesting It’s important to wait until your watermelons are fully ripe before you pick ...
They are described as “external” because they come from outside of the plant, particularly from outside of thegenetic factors. Man should be the most obvious biotic environmental factor that affects crop productivity, for example, it’s always man responsible for burning which can kill, suppres...
Dodig D, Zorić M, Jović M, Kandić V, Stanisavljević R, Surlan-Momirović G. Wheat seedlings growth response to water deficiency and how it correlates with adult plant tolerance to drought. J Agr Sci. 2015;153:466-80.
Two of biochar’s most valued benefits for plant growth are nutrient and water retention. When worked into the soil, biochar can prevent nutrients from leaching out and water from draining out of your soil, making biochar an effective soil amendment. ...
And even microscopic organisms rely on microclimates for survival.Think about this: decomposing leaves create heat that warms the soil; the warm soil in turn affects the growth, the conditions of organisms there,and those organisms then affect the rate of decomposition of the leaves … ...