Question

correctly label the three tectonic plates that are involved at this plate boundary. use the map below for reference.
word bank:

• african (nubian) plate
• nazca plate
• african (somalian) plate
• arabian plate

map of the east african rift valley © usgs

Explanation:

To determine the tectonic plates at this boundary (East African Rift - related, near Red Sea and Africa), we analyze the map and word bank. The Arabian Plate is near the Red Sea (label 1), the African (Nubian) Plate is on the African continent (label 2), and the African (Somalian) Plate is also involved (label 3, though not shown in the hotspot here, but for the three plates: Arabian Plate, African (Nubian) Plate, African (Somalian) Plate). For hotspot 1 (near Arabian region), it's Arabian Plate; hotspot 2 (African continent, west of the rift) is African (Nubian) Plate; hotspot 3 (eastern African rift - related) is African (Somalian) Plate. Assuming the hotspots: Hotspot 1: Arabian Plate, Hotspot 2: African (Nubian) Plate, Hotspot 3: African (Somalian) Plate. But for the given hotspots in the image (hotspot 1 and 2 shown), let's address them. Hotspot 1 (on the Arabian - like landmass near Red Sea) is Arabian Plate. Hotspot 2 (on the African landmass, west of the rift) is African (Nubian) Plate.

Answer:

Hotspot 1: Arabian Plate
Hotspot 2: African (Nubian) Plate
(Note: The third plate for the boundary is African (Somalian) Plate, likely at the third hotspot not fully shown here.)