The government wants to set new regulations that reduce carbon emissions from vehicles by half. How will this act help with the sustainability of our environment? (4 points) It will increase the use of fossil fuels It will increase the costs of used vehicles It will decrease purchases of electric or hybrid cars. It will reduce greenhouse gases in the atmosphere.

It's either -limiting factors or -scarce resources but i'd go with my first answer since the food and water are abundant they really aren't scarce

The rate that would change would be the  searching efficiency/attack rate. there are only two other rates in this model: the  growth rate of prey, and the  predator or consumer mortality rate.the  searching efficiency/attack rate is what indicates how effectively can a predator capture its prey whether in the searching process or actual capturing/attacking process. 

Yes yes yes very good