What is meant by salinization, and what are its consequences? How does salinization result from irrigation?
What will be an ideal response?
Answer: Salinization is the accumulation of salts to the point where plant growth is suppressed; occurs in the drylands, since it renders land useless. water contains salt, so over irrigation causes salinization because when water evaporates it leaves salt behind.
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The process by which water is evaporated from the surface of plants is called ____________________
Fill in the blanks with correct word
The average summer temperatures in the Southern Hemisphere are cooler than the average summer temperatures in the Northern Hemisphere because ____
A) Earth is closer to the sun in January B) Earth is farther from the sun in July C) over 80% of the Southern Hemisphere is covered with water D) the sun's energy is less intense in the Southern Hemisphere
Identify four key environmental problems that North Americas face in the early 21st Century?
What will be an ideal response?
Which of the following statements is true regarding the relationship between air pressure and altitude?
A. as one moves lower in the atmosphere, pressure decreases, as one moves closer to the earth's surface, pressure increases B. as one moves up in the atmosphere, pressure decreases, as one moves closer to the earth's surface, pressure increases C. as one moves lower in the atmosphere, pressure decreases, as one moves closer to the earth's surface, pressure decreases D. as one moves up in the atmosphere, pressure increases, as one moves closer to the earth's surface, pressure increases