Which structure in ferns (pteridophytes) would be used for nutrient absorption?
vascular bundles
1. root systems
2. sporangium
3. frond leaflets

(will give brainliest for correct answer)

If water is at -10 ° c and energy is added to the water until it is 50 ° c while maintaining a constant pressure of 760 mmhg, describe the phase change of the water?

Some technological solutions to problems like global warming meet the specific needs and situations of local communities. an example from india involves converting the solid waste from cattle into clean-burning fuel for cooking. this reduces the amount of greenhouse gases, specifically methane and carbon dioxide, released into the environment from wood fires. when evaluating the feasibility of implementing this solution, computer models are used to weigh costs against benefits. what factor is least likely to impact the decision on adopting this technology?

In which situations is the principle of cross-cutting relationship useful in determining relative age?