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snow_lady [41]
2 years ago
5

1. What force, created when two surfaces rub together,

Biology
1 answer:
Mnenie [13.5K]2 years ago
3 0

Answer:b friction

Explanation:

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Sidra has a baby that was born at 27 weeks. her baby is considered:
andreev551 [17]

The baby is considered as extremely preterm infant.

The babies that are born alive before the completion of a period of 37 weeks of pregnancy are the preterm babies. There are three categories into which preterm born babies are distinguished: moderate to late preterm for 32-37 weeks, very preterm for 28-32 weeks and extremely preterm for less than 28 weeks.

Premature births are one of the major causes of death of children under the age of 5 years. The babies that survive may have problems and may be  visual or hearing impaired, may have learning disabilities etc.

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3 years ago
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Fish first appeared: a) after the "Age of the Dinosaurs" during the Mesozoic Era. b) during the Ordovician Period of the Paleozo
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Answer:

during the Cambrian Period of the Paleozoic Era.

Explanation:

The Paleozoic is the earliest era (of three) of the Phanerozoic Eon and is composed of six geologic periods: the Cambrian, Ordovician, Silurian, Devonian, Carboniferous, and Permian (in that order from earliest to the latest). Fish first appeared about 530 million years ago during the Cambrian explosion.

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dimaraw [331]

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The sites of replication.

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How do you know any reaction has reached chemical equilibrium
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Naci is a dangerous acid. For ex suphiric acid . when you test this acid you realised that' it is dangerous because of its widespread use. Naci means Nitric acid collide with other acid that don't make any reaction with other acid.Its has own reaction With sodium hydroxide forms to perform a neutral solution.

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