Venus has thick clouds in its atmosphere. What makes up these clouds?

Which of the following is the unit of measurement used to describe the severity of an earth quake?

What is the most effective approach the government can take to keep the air clean? create and enforce regulations that limit fossil fuel burning by industries use funds to understand why smoke and mold are causes of outdoor air pollutants educate people about the threats to outdoor clean air from visible forms of air pollution modify regulations under the clean air act by including expensive options to reduce air pollution

What is an effective way to make connections between words you know and words you don't know?