On steep slopes and mountains, reduce erosion by creating level areas for crops.
a. a shelter belt c. mulching b. strip cropping d. terracing

d. Terracing

Terracing is a method of agriculture, which is commonly found in hilly or mountainous regions. It involves the formation of distinct steps on which crops are grown. This process is beneficial as it prevents both soil erosion and surface runoff. This process is useful to grow crops on the mountains that requires more water for growth such as rice.

d. Terracing

Terracing is a method of agriculture, which is commonly found in hilly or mountainous regions. It involves the formation of distinct steps on which crops are grown. This process is beneficial as it prevents both soil erosion and surface runoff. This process is useful to grow crops on the mountains that requires more water for growth such as rice.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.