<span>D:"Uses a convex eyepiece lens" is your Answer</span>
Answer:
The requirement of different nutrients, divide them into 2 categories.
Explanation:
On the basis of requirement of nutrients in our food, the chemicals are divided into 2 types - macronutrients, and macronutrients.
Nutrients are the molecules present in the food nourishes the living organisms. The macronutrients are needed in large quantities and they provide energy to the organism.
There are 3 major macronutrients present in every kind of food - proteins, fats, and carbohydrates.
On the other hand, micronutrients are required very less amount to the animals. But they are important for nourishment of the body, but their quantity is very less. Example of micronutrients are vitamins, minerals, manganese, iron, potassium, etc.
Therefore, it is told one should take balance diet to get all the nutrients.
The correct answer is seismic waves.
The middle layer of the Earth’s is called mantle. Mantle is dense and hot layer composed of silicate minerals. In the base of mantle secondary earthquakes disappear.
Seismic tomography is used for the imaging of this layer. It is an imaging technique that uses seismic waves generated by earthquakes to create images of Earth’s structure.
D. Both A and B is the correct answer
