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3 years ago

Which agricultural operation involves the use of mechanical devices such as jet sprays?

1 answer:

5 0

I feel like D) handling and cleaning is right because jet sprays use water, which can clean. Also, jet sprays are used for "high-quality cleaning".

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In the Southern subregion of sub-Saharan Africa, which country is mainly covered by the KalahariDesert?A. ZambiaB. MozambiqueC.

antoniya [11.8K]

C. Botswana, is mainly covered by the Kalahari Desert.

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4 years ago

Delay What is the required mass ratio to achieve an exhaust velocity of 2.455 km/s with a specific impulse of 294 seconds? Choos

zimovet [89]

Answer:

$\frac{mo}{mi} = 2.34$

Explanation:

Given data:

exhaust velocity = 2.455 km/s

specific impulse = 294 second

$\Delta V = Ve ln\frac{mo}{mi}$

$\Delta v = velocity$

Ve = effective exhaust velocity

$Ve = Isp\time s g_0$

Isp specific impulse

g_o = standard gravity

$vE = 294 \times 9.8 = 2881.2 m$

from above equation we have

$\frac{mo}{mi} = e^{\frac{\Delta v}{Ve} [tex]\frac{mo}{mi} = e^{\frac{2455}{2881.2}$ [ 2.455 km/s = 2455 m/s]

$\frac{mo}{mi} = 2.34$

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3 years ago

Western Europe's air pollution has been reduced through _____.

AURORKA [14]

Western Europe's air pollution has been reduced through improved engine efficiency.

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3 years ago

References of drought and desertification

nadezda [96]

Answer:

The desertification cycle works as follows. First, a drought kills plants and grasses; animals short on food damage trees and shrubs foraging for food. Humans accelerate the cycle by cutting the trees for firewood. Without trees and grasses for cover, there is nothing to hold the soils.

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3 years ago

How do animals and birds respond to climate chang.

Darina [25.2K]

Answer:

some birds will fly south for the winter and other animals will hibernate, and stock up on food and fat to last throughout the winter.

Explanation:

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3 years ago