Question

1. The vitamin necessary for night vision is__________
2.__________
is the richest source of plant protein.
3.________
provides soil and minerals to living organisms.
4. Leather is obtained from the__________
of cows and buffaloes.
5. Soil erosion is caused by_______
and_______​

Answer 1

1. As it relates to eyesight, vitamin A (also called all-trans-retinol) has been shown to be useful in helping with night vision. Vitamin A is a precursor of rhodopsin, the photopigment found in rods within the retina of our eye that helps us to see at night. Without vitamin A, "night blindness" occurs.
2. Soy products are among the richest sources of protein in a plant-based diet. The protein content varies with how the soy is prepared: firm tofu (soybean curds) contains about 10 g of protein per ½ cup. edamame beans (immature soybeans) contain 8.5 g of protein per ½ cup.
3. Humus improves soil structure, providing plants with water and minerals. The inorganic material of soil is composed of rock, slowly broken down into smaller particles that vary in size. Soil particles that are 0.1 to 2 mm in diameter are sand.
4. Real leather (not synthetically made) is made from animal skin, and more commonly cow hide, although goat, buffalo and exotic leathers such as snake and alligator are also available. Cows leather is often described as a byproduct from the meat and dairy industries, making up just 5% of the value of the animal.
5. Soil erosion is caused by water

and wind

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