Read this paragraph and answer the following question about it:
A scientist in Northern California is studying the tree rings of a very old redwood tree. He notices that the oldest tree rings are very narrow. As the rings move away from the center, he observes 15 rings that get wider and wider.

What can you determine about the climate during the 15-year period during which the tree rings grew wider?

A) the climate was warmer and wetter
B)the climate was warmer and drier
C)the climate was colder and drier
D)the climate was colder and wetter

C. The climate was colder and wetter

Explanation:

This is because the dry sites have low moisture and high temperature. The food competition within the tree is likely greater and the base of the stem is likely to receive a limited food supply and this could cause it to produce narrow rings

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: