An acid is an ionic compound that produces positive hydrogen ions when dissolved in water. Acids taste sour and turn blue litmus paper red. A base is an ionic compound that produces negative hydroxide ions when dissolved in water. Bases taste bitter and turn red litmus paper blue.
I would say B but I am not sure so sorry if it is wrong!!
Answer:
B)
Explanation:
because the wind is moving the sand and the rain moves the soil
16) weathering and erosion
Answer:
Look below
Explanation:
The formula for density is:

Therefore in order to find the density of a solid, you must find the mass and the volume first.
To find the mass, you can use a scale.
To find the volume, you can use the water displacement method. For example, if you fill the water of a graduated cylinder to 10 mL, and then you put a rock inside, and it rises to 15 mL, then the volume (of the rock) is 15mL-10mL=5mL.
The substances which dissolve most readily in water are called soluble substances and they are likely those substances which have the same polarity as water.