If the farmer plants the same crop in a field year after year the soil becomes less fertile what causes this decrease in fertility

According to VSEPR theory, the structure of the ammonia molecule, NH3, is A) triagonal planar B) linear C) bent D) triagonal pryramidal

What is the property of a substance for ml

What is the state of matter for 2NH3, 2NaCl and 2KNO3+PBI2.

How many atoms are in four molecules of oxygen gas

Whats a earthworms genus

What larger energy does light energy come from?

Allows water to pass through easily

Which is a cause of desertification? A. farming B. creating reservoirs C. overgrazing D. driving motor vehicles

What happens when the threat of exposure to dirty air is reduced in a community? There is enough oxygen available for people's lungs to function normally The amount of indoor air pollutants released during a fossil fuel burn decreases There is a

Is chicken noodle soup an element, a compound, a homogeneous mixture, or a heterogeneous mixture?