گردے دراصل لوبیئے کی شکل کے دو عدد اخراجی اعضاء ہیں جو خون میں پیدا ہوتے رہنے والے غیر ضروری اجزاء (بطور خاص یوریا) کو خون سے الگ کر کے یا چھان کر، پانی کے ساتھ پیشاب کی شکل میں جسم سے خارج کردیتے ہیں۔
Milk is approximately 80 percent water and 20 percent solids. As it comes from the cow, the solids portion of milk contains approximately 3.7 percent fat and 9 percent solids-not-fat. Milkfat carries the fat soluble vitamins A, D, E, and K.
It looks dark to astronauts. On the earth, the blue sky can be seen due to the existence of the atmosphere. The atmosphere blocks the rays of the sun and you can see the color of the sky. In the universe, because there is no atmosphere, the rays reach the astronomer's eyes without refraction and appear dark.
Forests and trees contribute significantly to food security by helping maintain the environmental conditions required for agricultural production. They stabilize the soil, prevent erosion, increase the water storage capacity of the soil, and reduce air temperature and soil temperature.
