Match the harmful agricultural Impact to its description. soll salinization
desertification
soll pollution
air pollution
DRAG & DROP THE ANSWER
process by which the productivity of the
topsoil decreases, caused by overgrazing and
deforestation
clearing and burning of forests to raise
crops/livestock adds dust and smoke to the
alr
Irrigation has a variety of salts
chemicals from industrial activities,
pesticides, and fertilizers seep into the soil

Nebulae are enormous clouds in outer space. they are made mostly of hydrogen gas, helium gas, and dust. some nebulae glow brightly, while others do not. the stars that people see are huge, bright balls of glowing gas. they are made mostly of hydrogen and helium. which statement correctly describes other ways in which nebulae and stars are different? a. stars can form inside a nebula but a nebula can never be produced by any star. b. a star always has a higher density than a nebula. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star.