1. which of the following causes physical erosion?

a. rivers
b. carbon dioxide
c. oxygen
d. forest fires

2. which of these is still affecting north america geologically, although it ended 10,000 years ago?

a. an earthquake
b. the last glaciation
c. a major subsidence
d. chemical erosion of the grand canyon

3. what caused the formation of the grand canyon?

a. continental drift
b. subsidence
c. physical erosion
d. a tsunami

Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.