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Juliette [100K]
3 years ago
12

Farmers are not able to rely on rainfall to meet the water needs for their crops.

Biology
2 answers:
aleksandrvk [35]3 years ago
5 0

Answer:

There is a serious drought that is going on so the answer is true all the way. They have to use city water to irrigate their crops in order to water their plants

Explanation:

Rzqust [24]3 years ago
3 0

Answer:

True

Explanation:

That's why modern-day farmers use giant sprinklers and tractor water tanks and trucks!

Glad I could help!!

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The amount of energy at trophic levels one and four in an ecosystem is indicated by the numbers.
nexus9112 [7]

Answer:

1100

Explanation:

There is 10% of total energy in each increasing trophic level.                    10,000 / 10 = 1,000 ,so there are 1,000 units of energy in trophic level 2.

1,000 / 10 = 100, so there are 100 units of energy in trophic level 3.

1,000 + 100 units of combined energy would be 1,100 units of energy.

Hope this helps!

3 0
3 years ago
As evidenced in the graph, the national average CO concentrations have decreased substantially over the years. All BUT ONE tacti
Gekata [30.6K]

Answer:

Explanation:

Carbon monoxide (CO) is a colourless, non-irritant, odourless and tasteless toxic gas. It is produced by the incomplete combustion of carbonaceous fuels such as wood, petrol, coal, natural gas and kerosene. Its molecular weight is 28.01 g/mol, melting point −205.1 °C, boiling point (at 760 mmHg) −191.5 °C (−312.7 °F), density 1.250 kg/m3 at 0 °C and 1 atm and 1.145 kg/m3 at 25 °C and 1 atm, and relative density (air = 1) 0.967 (1,2). Its solubility in water at 1 atm is 3.54 ml/100 ml at 0 °C, 2.14 ml/100 ml at 25 °C and 1.83 ml/100 ml at 37 °C.

The molecular weight of carbon monoxide is similar to that of air (28.01 vs approximately 29). It mixes freely with air in any proportion and moves with air via bulk transport. It is combustible, may serve as a fuel source and can form explosive mixtures with air. It reacts vigorously with oxygen, acetylene, chlorine, fluorine and nitrous oxide. Carbon monoxide is not detectable by humans either by sight, taste or smell. It is only slightly soluble in water, blood serum and plasma; in the human body, it reacts with haemoglobin to form carboxyhemoglobin (COHb).

The relationship of carbon monoxide exposure and the COHb concentration in blood can be modelled using the differential Coburn-Forster-Kane equation (3), which provides a good approximation to the COHb level at a steady level of inhaled exogenous carbon monoxide.

Conversion factors

At 760 mmHg and 20 °C, 1ppm = 1.165 mg/m3 and 1 mg/m3 = 0.858 ppm; at 25 °C, 1 ppm = 1.145 mg/m3 and 1 mg/m3 = 0.873 ppm.

8 0
3 years ago
Read 2 more answers
The greatest snowfall on a single day in recorded history occurred in Silver Lake, Colorado, in April, 1921. Approximately how m
exis [7]

Answer:

87 Inches

Explanation:

In 27 1/2 Hours

8 0
3 years ago
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What are the three stages of photosynthesis ​
AnnZ [28]

Absorption of light electron transport leaning to the reduction generation of ATP and conversion of CO2 into carbohydrate

3 0
3 years ago
A student wants to find out if aspirin helps keep cut flowers fresh. She wants to set up an experiment to test this, but first,
EleoNora [17]
C. If an is added to the water in a vase of daffodils, then the flowers' wilting time will not change because aspirin has no effect on the wilting time of daffodils.
This is the correct answer
3 0
3 years ago
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