Answer:
Soil texture.
Explanation:
The texture of soil is the main reason for its hardness and compact nature because texture of soil shows the characteristics of soil. There is high concentration or ratio of clay present in the soil which makes the soil hard and compact. Due to this texture, wild plants grow in this soil texture as well as poorly drained. So we can say that the texture of soil is responsible for its hardness.
Answer:
Ovules
A
Explanation:
The ovule can be found on a megasporophyll, which itself is located on a scale. On each megasporophyll of the female strobilus two seeds can develop after fertilization. In each megasporangium (the female carrier of spores) a megasporocyte is present which leads to four megaspores after meiosis.
D should be the correct answer
The right answer is A.
Insecticides are active substances or phytosanitary preparations with the property of killing insects, their larvae and / or their eggs. They are part of the family of pesticides, themselves included in the family of biocides, both of which are regulated in Europe by specific directives.
Some pestiids such as organoclorides are broad-spectrum, ie they act on several insects at the same time (whether they are good or bad).