What are the main methods that conserve soil

There are many ways of soil conservation. Some major ones are given in the explanation section.

Explanation:

From an agricultural point of view, there are many ways of soil conservation. Among them, ten ways are given below, which will be more conservative:

1. Planting more trees: It will hold the soil from being washed out during rain.

2. No-tillage operation/ zero tilling soil preparation: It won't change the layer of the soil. If layers don't change, it will conserve for more time. 

3. Rotation of the crops: Soil conservation also indicates the soil nutrient conservation. Some crops take more nutrients, and some crops take fewer nutrients from the soil. So crop rotation is needed to conserve soil nutrient or soil health.

4. Giving water in the soil/ soil watering: It helps to grow weeds, grasses. By doing this, soil can be conserved.

5. Promote the growth of helpful soil organisms: It helps to increase microbial activities, which improve soil nutrients.

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

explanation: