To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction.
So, 9/10 ÷ 2/3 is equivalent to 9/10 * 3/2.
Multiplying the numerators (9 * 3) gives 27, and multiplying the denominators (10 * 2) gives 20.
Therefore, 9/10 ÷ 2/3 equals 27/20.
3/10 divided by1/3
To divide fractions, you need to multiply the first fraction by the reciprocal of the second fraction.
So, 3/10 ÷ 1/3 is equivalent to 3/10 * 3/1.
Multiplying the numerators (3 * 3) gives 9, and multiplying the denominators (10 * 1) gives 10.
Therefore, 3/10 ÷ 1/3 equals 9/10.
In three to five sentences, explain how the valleys and mountain ranges form.
Valleys and mountain ranges are typically formed through the process of tectonic activity and erosion. Tectonic activity, such as the movement of crustal plates, can create forces that cause the Earth's surface to uplift, resulting in the formation of mountain ranges. Erosion then acts to shape the landscape further. Water, wind, and ice play significant roles in eroding the uplifted areas, carving out valleys and further shaping the mountains. Over millions of years, these ongoing processes can create a diverse range of valleys and mountain ranges across the Earth's surface.
Make it shorter
Valleys and mountain ranges form through tectonic activity and erosion. Tectonic forces uplift the Earth's surface, creating mountains. Erosion by water, wind, and ice shapes the landscape, carving out valleys and further shaping the mountains over time.
A student claims that earthquakes are more destructive than tsunamis. In one or two sentences, explain at least two reasons that support the student's claim. (2 points)
One reason that earthquakes can be more destructive than tsunamis is because earthquakes directly impact the ground, causing buildings and structures to collapse. Additionally, earthquakes can trigger other hazards like landslides and avalanches, amplifying their destructive power.
Sea arches and sea stacks provide evidence of weathering and erosion. In three to five sentences, explain the roles weathering and erosion play in creating these landforms. (4 points)
