What are the most efficient ways to irrigate crops?
What will be an ideal response?
Center-pivot, low pressure sprinklers; low-energy precision application sprinklers (LEPA); and, drip or trickle irrigation. Drip or trickle is also referred to as microirrigation. LEPA and microirrigation puts 90-95% of the water where the crops can use it.
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What type of rocks can usually be found in coastal beach environments?
a. Arkose and conglomerate b. Well-sorted, medium grained sandstone with ripple marks c. Sand with mud cracks d. Till e. Both a and b
Which of the following is true regarding the solubility of gases?
A) Solubility always decreases as pressure increases. B) Solubility always increases as pressure increases. C) Solubility usually decreases as pressure increases. D) Solubility usually increases as pressure increases.
the rock making up the mantle is called
What will be an ideal response?
Which region of the sun's electromagnetic spectrum is most responsible for human skin cancer?
A) infrared B) ultraviolet C) visible D) near infrared