Aseismograph records an earthquake, but scientists do not feel it. the earthquake has a magnitude
a) between 3.0 and 4.0
b) > 5.0
c) between 7.0 and 8.0
d) < 2.0

The correct answer is D. < 2.0

Explanation:

Earthquakes occur as energy is released from tectonic plates; these are commonly measured using a scale from 1 to 8 or 9. In this scale, earthquakes with a magnitude of 2 or less (< 2.0) are considered microearthquakes only registered by seismograph (an instrument that registers ground movements) but which are not commonly felt by people.

On the other hand earthquakes between 3.0 and 4.0 (minor earthquakes) can be felt by some people and earthquakes from higher magnitudes including moderate, strong, major and great earthquakes (from 4 to 8or 9) are felt by most people and also lead to damages on infrastructures that increases with magnitude. Thus, if a seismograph records an earthquake but scientists do not feel it has a magnitude < 2.0.

you must remain stopped until the stop signal is retracted and the red lights are turned off. approaching traffic in the opposite roadway of a divided highway shall not be required to stop, even if the school bus has the stop-arm extended and the alternately flashing warning signal lamps on.

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.