I think it is D if i remember middle school that well
<span>A greenhouse gas is a gas that contributes to the greenhouse effect by absorbing infrared radiation. It is important because it keeps the Earth's surface heated and able to maintain life upon it.</span>
Answer:
Gorgonopsia is an extinct clade of non-mammalian synapsids from the Permian period. Gorgonopsians were quadrupedal predators with prominent canine teeth, and the largest species were the apex predators of their ecosystems.[1] Like other non-mammalian synapsids, gorgonopsians were once described as "mammal-like reptiles", due to their mix of mammalian and reptilian traits. However, this description is no longer considered accurate as they are not reptiles.[2] Rather, as therapsids, they are closely related to mammals. Gorgonopsian fossils have been found in Russia and Africa.[3]
Hhhhhhhhhhh or HHHHHHHHHHHH both are grammatically correct
Hhhhhhhhhh is a sign of slight exasperation while HHHHHHHHHH is very high levels of frustration.