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NeX [460]
2 years ago
12

Which determines the reactivity of an alkali metal?

Biology
1 answer:
irinina [24]2 years ago
6 0

Answer:

its boiling and melting points

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A meteorologist observes a decrease in barometric pressure and predicts a chance of light to moderate precipitation. Which front
Dmitrij [34]

Answer:

Warm front

Explanation:

A warm front is the transition zone of the replacement of a cold air mass by a warm air mass. The pressure centers of warm fronts are usually low and the pressure read by a barometer will decrease due to an incoming warm front

The general direction of motion of warm fronts is from southwest to northeast with warmer and moist air behind the warm front than air into which the front flows. Therefore, warm fronts normally results in moderate precipitation or rainfall or snow.

5 0
2 years ago
In two or more sentences, explain how DNA replicates, including what percentage of the replicated strand is new vs. old.
k0ka [10]

Answer:

DNA replication is the process by which DNA makes a copy of itself during cell division

1 by unzipping the double helicase or the double helix structure of the molecule

2. the separation of two single strand of DNA

The percentage of the replicated strands of the new to the old is 50-50

6 0
3 years ago
What causes global confection currents to form
SashulF [63]
Convection currents are caused by the heat from the inner core.

Hope this helps!
3 0
3 years ago
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A student measured the amount of oxygen and carbon dioxide dissolved in an aquarium containing aquatic plants and snails. Why di
andriy [413]
The nail breathes oxygen to live. The nail breathes the oxygen dissolved in the water.


Given that the aquarium is a small bioma there is not enoguh source of oxygen to replace the oxygen consumed by the snail, except for the oxygen produced by the aquatinc plants inside the aquarium.


Plants produce oxygen through the process named photosynthesis. Photosynthesis requires light.


Given that the aquarium is kept dark, the aquatic plants cannot carry out the process of photosyntthesis and so there will not be generation new oxygen and the snails will die after they do not have oxygen to breath.


I
4 0
2 years ago
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Diseases have different causes and can be classified as being infectious or noninfectious. Which of the following phrases descri
Yanka [14]

Answer:

option B

Explanation:

You contracted malaria after an infected mosquito bit you on your arm

4 0
2 years ago
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