Question

1 Which human activity most directly causes a
significant increase in the amount of carbon
dioxide in the atmosphere?
(1) growing corn for food
(2) not using products containing plastics
(3) driving cars long distances
(4) planting large numbers of trees
2 In an effort to reduce the number of deaths due
to malaria, scientists have successfully introduced
a gene into mosquitoes. The gene makes the
mosquitoes unable to support the development
of the parasite that causes malaria. The technique
used to produce this new variety of mosquito is
most likely
(1) chromatography
(2) genetic engineering
(3) electrophoresis of genes
(4) selective breeding

Answer 1

Answer:

1.) 3

2.) 2

Explanation:

Hope this helps!

Answer 2

1. Driving cars over a long distances increase the amount of carbon dioxide in the atmosphere.

2. The technique used to produce the new variety of mosquito is genetic engineering.

How carbon dioxide level increases by driving car?

• The burning of diesel fuel in car releases harmful and unwanted gases like, carbon dioxide, sulfhur dioxide, etc. into the atmosphere.
• These are toxic in nature and have a adverse affect on humans as well as to the environment.

What is genetic engineering?

• "Genetic engineering is a process that uses laboratory-based technologies to alter the DNA makeup of an organism."
• The offspring produced through this technology have a different characteristics from their parents.
• It can create a more healthy and strong variety of animals.

Hence, the correct answer is: 1-(3) driving cars long distances and 2-(2) genetic engineering.

To know more about genetic engineering here

https://brainly.com/question/5757079

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