Which of the following is a sustainable practice in which people build small gardens on rooftops or in vacant lots? A. hydroponic farming
B. vertical farming
C. urban greenhouse
D. precision agriculture

How forest companies conflict with aboriginal

What is unusual about the iraq mountains ,in spite of their old age?

Good scientists always report their observations and results truthfully. this is especially important when a scientist's results go against previous ideas or predictions. coming up with inventive ways to solve problems or produce new things