In which sentence is the underlined clause an adjective clause 1. nasa created the first smoke detectors(when they built the space station) 2. (whoever uses an ear thermometer) is using the same technology that nasa uses to measure the temperature of stars. 3. invisible braces, (which are made of special material), were developed by a company making missile trackers. 4.athletic shoe makers gave shoes more bounce (when they used the same materials that are found in moon boots)

Identify the trade regulation concept described in each scenario. protectionism free trade trade war country a and country b want to develop their respective export markets. both countries have highly developed agricultural, industrial, and service sectors. the countries decide to initially lower trade barriers and eventually remove them completely. arrowright country a has an agrarian economy with an emerging industrial sector. to allow domestic industries to grow, country a applies quotas on all industrial products except those that are used as resources. arrowright country a passes an economic policy that will indirectly give its own companies an advantage over country b’s companies. country b alleges that the policy violates the countries’ trade agreement and imposes retaliatory tariffs. arrowright