15 14 21 20
how many planets are there?
a 7 b 8 c 9
earth is the fourth planet
a true b false
circle the tools that help a meteorologist predict the weather
beaufort scale rain gauge barometer
the rmometer stop watch telescope
fill in the missing numbers in this pattern following the rule + 3
6, 9, 12, 15, 18, 21, 24, __, __, __

Question

Accepted Answer

1. **Question**: How many planets are there?
   - **Brief Explanations**: In our solar - system, there are 8 planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune). Pluto was re - classified as a dwarf planet in 2006 by the International Astronomical Union.
   - **Answer**: B. 8
2. **Question**: Earth is the fourth planet.
   - **Brief Explanations**: The order of planets from the Sun is Mercury, Venus, Earth, Mars. Earth is the third planet.
   - **Answer**: B. False
3. **Question**: Circle the tools that help a meteorologist predict the weather.
   - **Brief Explanations**: A rain - gauge measures rainfall, a barometer measures air pressure, and a thermometer measures temperature. These are important for weather prediction. A balance scale is for weighing, a stop - watch for time measurement, and a telescope for observing distant objects in space, which are not relevant for weather prediction.
   - **Answer**: Rain gauge, barometer, thermometer
4. **Question**: Fill in the missing numbers in the pattern following the rule + 3. Given 8, 11, 14, 17, 20, 23, __, __, __
   - **Explanation**:
     - **Step1: Identify the first missing number**
       - Start with the last given number 23. Add 3 to it. $23 + 3=26$
     - **Step2: Identify the second missing number**
       - Take the result from Step1 (26). Add 3 to it. $26+ 3 = 29$
     - **Step3: Identify the third missing number**
       - Take the result from Step2 (29). Add 3 to it. $29+ 3 = 32$
   - **Answer**: 26, 29, 32

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