The picture below shows the devils Millhopper sinkhole in Florida. The sinkhole was formed when:

A. River water eroded the soil
B. An underground cavern collapsed
C. A hurricane flooded low lying areas
D. Plant roots caused mechanical weathering of rocks

Asap timed! 1. ice core samples from glaciers ice caps contain bubbles of ancient atmosphere that are in layers based on age. what questions are scientists most interested in? a. how the amount of water vapor needed to make the ice has changed b. how the amount of ozone has changed over time. c. how the amount of ice in each layer has changed over time d. how the amount of carbon dioxide has changed over time 2. what produces milankovich cycles ? a. sunspots ams solar flare on the suns surface b. changes in the earths orbit c. gravitational changes bases on the position of the sun and the moond. cycles of vegetation that result in desert and rainforest conditions

Crossing over and independent assortment are important activities that occur during meiosis. what is the significance of these activities

Which of the following is a true statements about viruses? viruses have no nucleus. viruses are alive. viruses have a cell membrane. all viruses are deadly.