Answer:
B: volcanic activity
D: fossil fuel consumption
Explanation:
Fossil fuel consumption and volcanic activity are the two factors that has a great influenced on the global temperatures. Fossil fuel consumption is a human activity and volcanic activity both releases carbondioxide gas while burning. This carbondioxide gas is a greenhouse gas which block the reflected solar radiation and leads to increase in the surface temperature of the earth.
Answer:
C. When air temperatures are cool and the ground is wet
Answer:
-Create a garden of different flowers
-Make a prediction about which flowers hummingbirds are most attracted to
-Observe how many times hummingbirds visit each flower
-Record his observations
-Write a report on his findings
<span>The correct answer is genetic material of sperm and egg combined.
</span> <span>Fertilization is the fusion or joining of the egg and the sperm (haploid gametes), resulting in a fertilized egg, otherwise known as a zygote (diploid). The process of fertilization is very complicated and comprised of many steps, but the key step involves components of and signalling between, both sperm (spermatozoa) and egg (oocyte).</span>
Carrying away carbon dioxide waste, and maintaining proper pH of the blood. Breathing occurs due to repeated contractions of a large muscle called the diaphragm. The rate of breathing is regulated by the brain stem.
