A. Choose the correct option(s) in each of the following:
1. Change of seasons is due to:
a) Rotation of the earth
b) Earth's gravitational zone
c) Revolution of the earth
d) Spherical shape of the earth

2. The direct rays of the Sun fall on the equator on:
a) September 23
b) March 21
c) June 21
d) Both (a) and (b)

3. The longest day in the Southern Hemisphere is on:
a) June 21
b) March 21
c) December 22
d) September 23

4. Christmas is celebrated in summers in
a) UK
b) USA
c) Australia
d) China​

Why might a single rock layer exhibit different types of sedimentary rocks within it? view available hint(s) why might a single rock layer exhibit different types of sedimentary rocks within it? such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed in a sequence over time. such a rock layer, termed a facies, when traced laterally represents a single depositional environment that formed over time. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced laterally represents a variety of depositional environments that formed at the same time across a broad area. such a rock layer, termed a facies, when traced vertically represents a variety of depositional environments that formed in a sequence over time.