Practice check: In environmental studies, what is desertification?

✅ A. Liver

✅ D. Argon

✅ C. The RBCs agglutinate

✅ B. Oxytocin

✅ C. Vitamin D

a: Vitamin B12 | b: Vitamin C | c: Vitamin D | d: Vitamin K Read more

✅ D. Processes materials so they can be used again

a: Prevents all waste automatically | b: Creates new raw materials from nothing | c: Always turns waste into fuel | d: Processes materials so they can be used again Read more

✅ A. Accumulation of salts in soil

✅ C. The Sun

a: Tides alone | b: Earth's core alone | c: The Sun | d: The Moon Read more