LUOA Earth Science 3rd Quarter Test (2023/2024) Rated A+

LUOA Earth Science 3rd Quarter Test (2023/2024) Rated A+ One of the benefits to conventional oil is _______________. it has a high net energy yield Some of the problems with coal include: (choose 2) It has high CO2 emissions when it is burned. It is a severe threat to human health. A passive method of using solar energy would be _____________________ opening the window to let sunlight come in What is the main leading source of renewable energy? Hydropower All of the following are benefits to using natural gas except ______________. it is renewable (there is ample supply it has a high net energy yield it has low cost (in the US due to subsidies) there is less air pollution than other fossil fuels) Three advantages to using biomass as fuel are (choose three): It has large potential in some areas. It can make use of agricultural and urban waste products. Plantations can help restore lands that are degraded. When lichen and moss grow on rocks they begin the process of ____________. biological weathering due to pressure Oxidation, from O2, affects minerals with the element ____________ causing the rock to turn reddish. iron When water freezes it ______________________. expands approximately 10% What is weathering? The changing of rocks at the Earth's surface due to exposure to certain variables Abrasion can cause rocks to be tumbled into a round shape by _________, _____________, and _________. glaciers waves rivers Chemical weathering can be caused by plants. Which is the most likely possibility? Plants die and decay, dissolving in water, breaking down rocks. What 2 things affect the acceleration of soil formation? ______________ and _____________. temperature & precipitation Five factors that affect soil formation are _____________________________. parent material, climate, time, topography, organisms Parent material is responsible for the ____________________________. (Choose 3) direction, timing, and nature of the soil material physical and chemical properties of the soil the formation of the soil horizons Steep topography causes all of the following except ________________________. leading to poor soil formation at the bottom of the slope (subjecting the soil to faster water flowing down quicker soil formation at the bottom of the slope increased weathering and breakdown of