Answer:
their military involvement in Angola
Explanation:
Answer:
Explanation: 1.Recycling is very important as waste has a huge negative impact on the natural environment.Harmful chemicals and greenhouse gasses are released from rubbish in landfill sites
Toy gun - Plastic
Ballpen - brass
lamp shade - steel/brass
Coin purse - paper
Answer:
i would say
Burning fossil fuels.
Explanation:
Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere.
Answer:
-Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry; air there contains little water vapor. Because of this, few clouds are found in this layer; almost all clouds occur in the lower, more humid troposphere.