Hurricanes, Tornadoes & Monsoons

Question 1

Scientists are studying whether climate change raised the chance that a Category 4 cyclone named Vega would develop over the Indian Ocean in 2024. Which approach correctly uses climate models for this attribution?

Accepted Answer

Run large ensembles of a climate model for both the present-day climate (with current greenhouse‑gas levels) and a pre‑industrial climate, count how often cyclones like Vega occur in each set, and compare the frequencies or intensities to estimate the climate‑change effect.

Answer

Run a single model simulation for 2024 with today’s greenhouse‑gas concentrations, see that it produces a cyclone, and conclude that climate change caused Vega.

Answer

Compare the sea‑surface temperature on the day Vega formed to the average temperature 30 years ago and attribute the difference directly to climate change.

Answer

Find a similar cyclone from the 1970s in the historical record and claim that because the world is warmer now, climate change made Vega twice as likely.

Question 2

In a coastal region the ocean stays around 27 °C while the land heats up to about 34 °C during summer. Which statement correctly explains how this temperature contrast creates the summer monsoon wind?

Accepted Answer

The hotter land produces low pressure over the continent; higher pressure remains over the cooler ocean, so air moves from sea to land, bringing moist ocean air inland.

Answer

The greater heat over the ocean makes it evaporate more, creating a high‑pressure zone that drives air toward the land.

Answer

The land’s heat creates a permanent high‑pressure system over the continent that pulls wind from the sea all year round.

Answer

The hot land pushes the ocean water away, forcing the wind to blow from land toward the sea.

Question 3

You are sketching a side‑view picture of a hurricane. Which three labels must all be included to correctly show how the storm becomes stronger?

Accepted Answer

Warm ocean water, latent‑heat release, low‑pressure spiral

Answer

Warm ocean water, solar radiation, high‑pressure eye

Answer

Cold ocean water, evaporation, high‑pressure core

Answer

Warm land surface, solar heating, high‑pressure eye

Try three questions

Scientists are studying whether climate change raised the chance that a Category 4 cyclone named Vega would develop over the Indian Ocean in 2024. Which approach correctly uses climate models for this attribution?

In a coastal region the ocean stays around 27 °C while the land heats up to about 34 °C during summer. Which statement correctly explains how this temperature contrast creates the summer monsoon wind?

You are sketching a side‑view picture of a hurricane. Which three labels must all be included to correctly show how the storm becomes stronger?

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